diff --git a/code/modules/mob/living/carbon/human/human_damage.dm b/code/modules/mob/living/carbon/human/human_damage.dm
index bd3ee6f3..e4db2e6b 100644
--- a/code/modules/mob/living/carbon/human/human_damage.dm
+++ b/code/modules/mob/living/carbon/human/human_damage.dm
@@ -56,7 +56,10 @@
 
 	if(species && species.has_organ["brain"])
 		var/datum/organ/internal/brain/sponge = internal_organs_by_name["brain"]
-		brainloss = min(sponge.damage,maxHealth*2)
+		if(sponge)
+			brainloss = min(sponge.damage,maxHealth*2)
+		else
+			brainloss = 200
 	else
 		brainloss = 0
 	return brainloss
diff --git a/code/modules/mob/living/carbon/human/human_movement.dm b/code/modules/mob/living/carbon/human/human_movement.dm
index b6758551..d69b6e61 100644
--- a/code/modules/mob/living/carbon/human/human_movement.dm
+++ b/code/modules/mob/living/carbon/human/human_movement.dm
@@ -54,6 +54,8 @@
 	if (bodytemperature < 283.222)
 		tally += (283.222 - bodytemperature) / 10 * 1.75
 
+	tally += max(2 * stance_damage, 0)
+
 	if(mRun in mutations)
 		tally = -1
 
diff --git a/code/modules/mob/living/carbon/human/update_icons.dm b/code/modules/mob/living/carbon/human/update_icons.dm
index db65ebe9..8c52146b 100644
--- a/code/modules/mob/living/carbon/human/update_icons.dm
+++ b/code/modules/mob/living/carbon/human/update_icons.dm
@@ -108,28 +108,29 @@ Please contact me on #coderbus IRC. ~Carn x
 #define MUTANTRACE_LAYER		1
 #define MUTATIONS_LAYER			2
 #define DAMAGE_LAYER			3
-#define UNIFORM_LAYER			4
-#define TAIL_LAYER				5		//bs12 specific. this hack is probably gonna come back to haunt me
-#define ID_LAYER				6
-#define SHOES_LAYER				7
-#define GLOVES_LAYER			8
-#define SUIT_LAYER				9
-#define GLASSES_LAYER			10
-#define BELT_LAYER				11		//Possible make this an overlay of somethign required to wear a belt?
-#define SUIT_STORE_LAYER		12
-#define BACK_LAYER				13
-#define HAIR_LAYER				14		//TODO: make part of head layer?
-#define EARS_LAYER				15
-#define FACEMASK_LAYER			16
-#define HEAD_LAYER				17
-#define COLLAR_LAYER			18
-#define HANDCUFF_LAYER			19
-#define LEGCUFF_LAYER			20
-#define L_HAND_LAYER			21
-#define R_HAND_LAYER			22
-#define TARGETED_LAYER			23		//BS12: Layer for the target overlay from weapon targeting system
-#define FIRE_LAYER				24    //If you're on fire
-#define TOTAL_LAYERS			24
+#define SURGERY_LEVEL			4
+#define UNIFORM_LAYER			5
+#define TAIL_LAYER				6		//bs12 specific. this hack is probably gonna come back to haunt me
+#define ID_LAYER				7
+#define SHOES_LAYER				8
+#define GLOVES_LAYER			9
+#define SUIT_LAYER				10
+#define GLASSES_LAYER			11
+#define BELT_LAYER				12		//Possible make this an overlay of somethign required to wear a belt?
+#define SUIT_STORE_LAYER		13
+#define BACK_LAYER				14
+#define HAIR_LAYER				15		//TODO: make part of head layer?
+#define EARS_LAYER				16
+#define FACEMASK_LAYER			17
+#define HEAD_LAYER				18
+#define COLLAR_LAYER			19
+#define HANDCUFF_LAYER			20
+#define LEGCUFF_LAYER			21
+#define L_HAND_LAYER			22
+#define R_HAND_LAYER			23
+#define TARGETED_LAYER			24		//BS12: Layer for the target overlay from weapon targeting system
+#define FIRE_LAYER				25    	//If you're on fire
+#define TOTAL_LAYERS			25
 //////////////////////////////////
 
 /mob/living/carbon/human
@@ -1051,10 +1052,21 @@ proc/get_damage_icon_part(damage_state, body_part)
 	var/image/face_lying_image = new /image(icon = face_lying)
 	return face_lying_image
 
+/mob/living/carbon/human/proc/update_surgery(var/update_icons=1)
+	overlays_standing[SURGERY_LEVEL] = null
+	var/image/total = new
+	for(var/datum/organ/external/E in organs)
+		if(E.open)
+			var/image/I = image("icon"='icons/mob/surgery.dmi', "icon_state"="[E.name][round(E.open)]", "layer"=-SURGERY_LEVEL)
+			total.overlays += I
+	overlays_standing[SURGERY_LEVEL] = total
+	if(update_icons)   update_icons()
+
 //Human Overlays Indexes/////////
 #undef MUTANTRACE_LAYER
 #undef MUTATIONS_LAYER
 #undef DAMAGE_LAYER
+#undef SURGERY_LEVEL
 #undef UNIFORM_LAYER
 #undef TAIL_LAYER
 #undef ID_LAYER
diff --git a/code/modules/mob/mob_defines.dm b/code/modules/mob/mob_defines.dm
index 77a97e71..b0e0f0b9 100644
--- a/code/modules/mob/mob_defines.dm
+++ b/code/modules/mob/mob_defines.dm
@@ -222,3 +222,5 @@
 	var/list/active_genes=list()
 
 	var/floating = 0 //living
+
+	var/stance_damage = 0
\ No newline at end of file
diff --git a/code/modules/organs/blood.dm b/code/modules/organs/blood.dm
index 8d4144a5..7c010844 100644
--- a/code/modules/organs/blood.dm
+++ b/code/modules/organs/blood.dm
@@ -330,12 +330,8 @@ proc/blood_splatter(var/target,var/datum/reagent/blood/source,var/large)
 		else
 			B.blood_DNA[source.data["blood_DNA"]] = "O+"
 
-	// Update virus information. //Looks like this is out of date.
-	//for(var/datum/disease/D in source.data["viruses"])
-	//	var/datum/disease/new_virus = D.Copy(1)
-	//	source.viruses += new_virus
-	//	new_virus.holder = B
+	// Update virus information.
 	if(source.data["virus2"])
 		B.virus2 = virus_copylist(source.data["virus2"])
 
-	return B
\ No newline at end of file
+	return B
diff --git a/code/modules/organs/organ.dm b/code/modules/organs/organ.dm
index 8d9cf177..17f178ad 100644
--- a/code/modules/organs/organ.dm
+++ b/code/modules/organs/organ.dm
@@ -58,8 +58,8 @@
 
 // Takes care of organ related updates, such as broken and missing limbs
 /mob/living/carbon/human/proc/handle_organs()
+
 	number_wounds = 0
-	var/leg_tally = 2
 	var/force_process = 0
 	var/damage_this_tick = getBruteLoss() + getFireLoss() + getToxLoss()
 	if(damage_this_tick > last_dam)
@@ -74,6 +74,9 @@
 	for(var/datum/organ/internal/I in internal_organs)
 		I.process()
 
+	//losing a limb stops it from processing, so this has to be done separately
+	handle_stance()
+
 	if(!force_process && !bad_external_organs.len)
 		return
 
@@ -100,23 +103,37 @@
 						if (W.infection_check())
 							W.germ_level += 1
 
-			if(E.name in list("l_leg","l_foot","r_leg","r_foot") && !lying)
-				if (!E.is_usable() || E.is_malfunctioning() || (E.is_broken() && !(E.status & ORGAN_SPLINTED)))
-					leg_tally--			// let it fail even if just foot&leg
+/mob/living/carbon/human/proc/handle_stance()
+	// Don't need to process any of this if they aren't standing anyways
+	// unless their stance is damaged, and we want to check if they should stay down
+	if (!stance_damage && (lying || resting) && (life_tick % 4) == 0)
+		return
+
+	stance_damage = 0
+
+	// Buckled to a bed/chair. Stance damage is forced to 0 since they're sitting on something solid
+	if (istype(buckled, /obj/structure/stool/bed))
+		return
+
+	for (var/organ in list("l_leg","l_foot","r_leg","r_foot"))
+		var/datum/organ/external/E = organs_by_name[organ]
+		if (E.status & ORGAN_DESTROYED)
+			stance_damage += 2 // let it fail even if just foot&leg
+		else if (E.is_malfunctioning() || (E.is_broken() && !(E.status & ORGAN_SPLINTED)) || !E.is_usable())
+			stance_damage += 1
+
+	// Canes and crutches help you stand (if the latter is ever added)
+	// One cane mitigates a broken leg+foot, or a missing foot.
+	// Two canes are needed for a lost leg. If you are missing both legs, canes aren't gonna help you.
+	if (istype(l_hand, /obj/item/weapon/cane))
+		stance_damage -= 2
+	if (istype(l_hand, /obj/item/weapon/cane))
+		stance_damage -= 2
 
 	// standing is poor
-	if(leg_tally <= 0 && !paralysis && !(lying || resting) && prob(5))
-		if(species && species.flags & NO_PAIN)
-			emote("scream")
-		emote("collapse")
-		paralysis = 10
-
-	//Check arms and legs for existence
-	can_stand = 2 //can stand on both legs
-	var/datum/organ/external/E = organs_by_name["l_foot"]
-	if(E.status & ORGAN_DESTROYED)
-		can_stand--
-
-	E = organs_by_name["r_foot"]
-	if(E.status & ORGAN_DESTROYED)
-		can_stand--
+	if(stance_damage >= 4 || (stance_damage >= 2 && prob(5)))
+		if(!(lying || resting))
+			if(species && !(species.flags & NO_PAIN))
+				emote("scream")
+			custom_emote(1, "collapses!")
+		Weaken(5) //can't emote while weakened, apparently.
\ No newline at end of file
diff --git a/code/modules/organs/organ_alien.dm b/code/modules/organs/organ_alien.dm
index ae70f485..3f17df0d 100644
--- a/code/modules/organs/organ_alien.dm
+++ b/code/modules/organs/organ_alien.dm
@@ -39,6 +39,7 @@
 
 /obj/item/organ/diona/removed(var/mob/living/target,var/mob/living/user)
 
+	..()
 	var/mob/living/carbon/human/H = target
 	if(!istype(target))
 		del(src)
@@ -51,10 +52,10 @@
 	if(!diona)
 		del(src)
 
-	var/mob/living/carbon/alien/diona/D = new(get_turf(src))
-	diona.request_player(D)
-
-	del(src)
+	spawn(1) // So it has time to be thrown about by the gib() proc.
+		var/mob/living/carbon/alien/diona/D = new(get_turf(src))
+		diona.request_player(D)
+		del(src)
 
 // These are different to the standard diona organs as they have a purpose in other
 // species (absorbing radiation and light respectively)
diff --git a/code/modules/organs/organ_external.dm b/code/modules/organs/organ_external.dm
index 0c987b72..fe20acd3 100644
--- a/code/modules/organs/organ_external.dm
+++ b/code/modules/organs/organ_external.dm
@@ -32,8 +32,6 @@
 	var/damage_msg = "\red You feel an intense pain"
 	var/broken_description
 
-//	var/vital //Lose a vital limb, die immediately.
-//	var/status = 0
 	var/open = 0
 	var/stage = 0
 	var/cavity = 0
@@ -100,7 +98,8 @@
 		brute -= brute / 2
 
 	if(status & ORGAN_BROKEN && prob(40) && brute)
-		owner.emote("scream")	//getting hit on broken hand hurts
+		if (!(owner.species && (owner.species.flags & NO_PAIN)))
+			owner.emote("scream")	//getting hit on broken hand hurts
 	if(used_weapon)
 		add_autopsy_data("[used_weapon]", brute + burn)
 
@@ -138,9 +137,9 @@
 				burn = max(0, burn - can_inflict)
 		//If there are still hurties to dispense
 		if (burn || brute)
-//			if (status & ORGAN_ROBOT)
-//				droplimb(1) //Robot limbs just kinda fail at full damage. //this is breaking things okay
-			if (burn || brute)//else this was formerly an else.  double iffing because nobody wants to fix that much spacing
+			if (status & ORGAN_ROBOT)
+				droplimb(1) //Robot limbs just kinda fail at full damage.
+			else
 				//List organs we can pass it to
 				var/list/datum/organ/external/possible_points = list()
 				if(parent)
@@ -160,7 +159,7 @@
 	//If limb took enough damage, try to cut or tear it off
 	if(body_part != UPPER_TORSO && body_part != LOWER_TORSO) //as hilarious as it is, getting hit on the chest too much shouldn't effectively gib you.
 		if(config.limbs_can_break && brute_dam >= max_damage * config.organ_health_multiplier)
-			if( (edge && prob(5 * brute)) || (brute > 20 && prob(2 * brute)) )
+			if( (edge && prob(5 * brute)) || (brute > 20 && prob(brute)) )
 				droplimb(1)
 				return
 
@@ -498,10 +497,11 @@ Note that amputating the affected organ does in fact remove the infection from t
 		H = owner
 
 	for(var/datum/wound/W in wounds)
-		if(W.damage_type == CUT || W.damage_type == BRUISE)
-			brute_dam += W.damage
-		else if(W.damage_type == BURN)
-			burn_dam += W.damage
+		if(!W.internal) //so IB doesn't count towards crit/paincrit
+			if(W.damage_type == CUT || W.damage_type == BRUISE)
+				brute_dam += W.damage
+			else if(W.damage_type == BURN)
+				burn_dam += W.damage
 
 		if(!(status & ORGAN_ROBOT) && W.bleeding() && (H && !(H.species.flags & NO_BLOOD)))
 			W.bleed_timer--
@@ -563,7 +563,7 @@ Note that amputating the affected organ does in fact remove the infection from t
 		O.setAmputatedTree()
 
 //Handles dismemberment
-/datum/organ/external/proc/droplimb(var/override = 0,var/no_explode = 0)
+/datum/organ/external/proc/droplimb(var/override = 0,var/no_explode = 0,var/amputation=0)
 	if(destspawn) return
 	if(override)
 		status |= ORGAN_DESTROYED
@@ -580,9 +580,13 @@ Note that amputating the affected organ does in fact remove the infection from t
 
 		germ_level = 0
 
+		// If any organs are attached to this, destroy them
+		for(var/datum/organ/external/O in children)
+			O.droplimb(1, no_explode, amputation)
+
 		//Replace all wounds on that arm with one wound on parent organ.
 		wounds.Cut()
-		if (parent)
+		if (parent && !amputation)
 			var/datum/wound/W
 			if(max_damage < 50)
 				W = new/datum/wound/lost_limb/small(max_damage)
@@ -592,22 +596,12 @@ Note that amputating the affected organ does in fact remove the infection from t
 			parent.update_damages()
 		update_damages()
 
-		// If any organs are attached to this, destroy them
-		for(var/datum/organ/external/O in children)
-			O.droplimb(1)
-
 		var/obj/organ	//Dropped limb object
+		var/list/dropped_items
 		switch(body_part)
 			if(HEAD)
-				if(owner.species.flags & IS_SYNTHETIC)
-					organ= new /obj/item/weapon/organ/head/posi(owner.loc, owner)
-				else
-					organ= new /obj/item/weapon/organ/head(owner.loc, owner)
-				owner.u_equip(owner.glasses)
-				owner.u_equip(owner.head)
-				owner.u_equip(owner.l_ear)
-				owner.u_equip(owner.r_ear)
-				owner.u_equip(owner.wear_mask)
+				organ = new /obj/item/weapon/organ/head(owner.loc, owner)
+				dropped_items = list(owner.glasses, owner.head, owner.l_ear, owner.r_ear, owner.wear_mask)
 			if(ARM_RIGHT)
 				if(status & ORGAN_ROBOT)
 					organ = new /obj/item/robot_parts/r_arm(owner.loc)
@@ -631,26 +625,29 @@ Note that amputating the affected organ does in fact remove the infection from t
 			if(HAND_RIGHT)
 				if(!(status & ORGAN_ROBOT))
 					organ= new /obj/item/weapon/organ/r_hand(owner.loc, owner)
-				owner.u_equip(owner.gloves)
+				dropped_items = list(owner.gloves) //should probably make it so that you can still wear gloves if you have one hand
 			if(HAND_LEFT)
 				if(!(status & ORGAN_ROBOT))
 					organ= new /obj/item/weapon/organ/l_hand(owner.loc, owner)
-				owner.u_equip(owner.gloves)
+				dropped_items = list(owner.gloves)
 			if(FOOT_RIGHT)
 				if(!(status & ORGAN_ROBOT))
 					organ= new /obj/item/weapon/organ/r_foot/(owner.loc, owner)
-				owner.u_equip(owner.shoes)
+				dropped_items = list(owner.shoes)
 			if(FOOT_LEFT)
 				if(!(status & ORGAN_ROBOT))
 					organ = new /obj/item/weapon/organ/l_foot(owner.loc, owner)
-				owner.u_equip(owner.shoes)
+				dropped_items = list(owner.shoes)
+		if(dropped_items)
+			for(var/obj/O in dropped_items)
+				owner.remove_from_mob(O)
 
 		destspawn = 1
 		//Robotic limbs explode if sabotaged.
 		if(status & ORGAN_ROBOT && !no_explode && sabotaged)
 			owner.visible_message("\red \The [owner]'s [display_name] explodes violently!",\
 			"\red <b>Your [display_name] explodes!</b>",\
-			"You hear an explosion followed by a scream!")
+			"You hear an explosion!")
 			explosion(get_turf(owner),-1,-1,2,3)
 			var/datum/effect/effect/system/spark_spread/spark_system = new /datum/effect/effect/system/spark_spread()
 			spark_system.set_up(5, 0, owner)
@@ -663,10 +660,9 @@ Note that amputating the affected organ does in fact remove the infection from t
 		"<span class='moderate'><b>Your [display_name] goes flying off!</b></span>",\
 		"You hear a terrible sound of ripping tendons and flesh.")
 
-		if(organ)
-			//Throw organs around
-			var/lol = pick(cardinal)
-			step(organ,lol)
+		//Throw organs around
+		if(istype(owner.loc,/turf) && organ)
+			step(organ,pick(cardinal))
 
 		owner.update_body(1)
 
@@ -769,6 +765,15 @@ Note that amputating the affected organ does in fact remove the infection from t
 			suit.supporting_limbs |= src
 	return
 
+/datum/organ/external/proc/mend_fracture()
+	if(status & ORGAN_ROBOT)
+		return 0	//ORGAN_BROKEN doesn't have the same meaning for robot limbs
+	if(brute_dam > min_broken_damage * config.organ_health_multiplier)
+		return 0	//will just immediately fracture again
+
+	status &= ~ORGAN_BROKEN
+	return 1
+
 /datum/organ/external/proc/robotize()
 	src.status &= ~ORGAN_BROKEN
 	src.status &= ~ORGAN_BLEEDING
@@ -816,7 +821,7 @@ Note that amputating the affected organ does in fact remove the infection from t
 	return ((status & ORGAN_BROKEN) && !(status & ORGAN_SPLINTED))
 
 /datum/organ/external/proc/is_malfunctioning()
-	return ((status & ORGAN_ROBOT) && prob(brute_dam + burn_dam - 11))
+	return ((status & ORGAN_ROBOT) && prob(brute_dam + burn_dam))
 
 //for arms and hands
 /datum/organ/external/proc/process_grasp(var/obj/item/c_hand, var/hand_name)
@@ -825,8 +830,8 @@ Note that amputating the affected organ does in fact remove the infection from t
 
 	if(is_broken())
 		owner.u_equip(c_hand)
-		var/emote_scream = pick("screams in pain and", "lets out a sharp cry and", "cries out and")
-		owner.emote("me", 1, "[(owner.species && owner.species.flags & NO_PAIN) ? "" : emote_scream ] drops what they were holding in their [hand_name]!")
+		var/emote_scream = pick("screams in pain and ", "lets out a sharp cry and ", "cries out and ")
+		owner.emote("me", 1, "[(owner.species && owner.species.flags & NO_PAIN) ? "" : emote_scream ]drops what they were holding in their [hand_name]!")
 	if(is_malfunctioning())
 		owner.u_equip(c_hand)
 		owner.emote("me", 1, "drops what they were holding, their [hand_name] malfunctioning!")
@@ -1005,6 +1010,8 @@ Note that amputating the affected organ does in fact remove the infection from t
 
 obj/item/weapon/organ
 	icon = 'icons/mob/human_races/r_human.dmi'
+	var/op_stage = 0
+	var/list/organs_internal = list()
 
 obj/item/weapon/organ/New(loc, mob/living/carbon/human/H)
 	..(loc)
@@ -1015,9 +1022,18 @@ obj/item/weapon/organ/New(loc, mob/living/carbon/human/H)
 			blood_DNA = list()
 		blood_DNA[H.dna.unique_enzymes] = H.dna.b_type
 
-	//Forming icon for the limb
+	// Transferring over organs from the host.
+	for(var/datum/organ/internal/I in H.internal_organs)
+		if(I.parent_organ != name)
+			continue
+		var/obj/item/organ/current_organ = I.remove()
+		current_organ.removed(H)
+		current_organ.loc = src
+		if(current_organ.organ_data)
+			organs_internal |= current_organ.organ_data
 
-	//Setting base icon for this mob's race
+	// Forming icon for the limb
+	// Setting base icon for this mob's race
 	var/icon/base
 	if(H.species && H.species.icobase)
 		base = icon(H.species.icobase)
@@ -1038,7 +1054,7 @@ obj/item/weapon/organ/New(loc, mob/living/carbon/human/H)
 			base.Blend(rgb(H.r_skin, H.g_skin, H.b_skin), ICON_ADD)
 
 	icon = base
-	dir = SOUTH
+	set_dir(SOUTH)
 	src.transform = turn(src.transform, rand(70,130))
 
 
@@ -1101,81 +1117,34 @@ obj/item/weapon/organ/head/New(loc, mob/living/carbon/human/H)
 				hair.Blend(rgb(H.r_hair, H.g_hair, H.b_hair), ICON_ADD)
 
 			overlays.Add(hair) //icon.Blend(hair, ICON_OVERLAY)
-	spawn(5)
-	if(brainmob && brainmob.client)
-		brainmob.client.screen.len = null //clear the hud
-
-	//if(ishuman(H))
-	//	if(H.gender == FEMALE)
-	//		H.icon_state = "head_f"
-	//	H.overlays += H.generate_head_icon()
-	transfer_identity(H)
 
 	name = "[H.real_name]'s head"
-
 	H.regenerate_icons()
 
-	brainmob.stat = 2
-	brainmob.death()
-
-obj/item/weapon/organ/head/proc/transfer_identity(var/mob/living/carbon/human/H)//Same deal as the regular brain proc. Used for human-->head
-	brainmob = new(src)
-	brainmob.name = H.real_name
-	brainmob.real_name = H.real_name
-	brainmob.dna = H.dna.Clone()
-	if(H.mind)
-		H.mind.transfer_to(brainmob)
-	brainmob.container = src
-
-obj/item/weapon/organ/head/attackby(obj/item/weapon/W as obj, mob/user as mob)
-	if(istype(W,/obj/item/weapon/scalpel))
-		switch(brain_op_stage)
-			if(0)
-				for(var/mob/O in (oviewers(brainmob) - user))
-					O.show_message("\red [brainmob] is beginning to have \his head cut open with [W] by [user].", 1)
-				brainmob << "\red [user] begins to cut open your head with [W]!"
-				user << "\red You cut [brainmob]'s head open with [W]!"
-
-				brain_op_stage = 1
-
-			if(2)
-				for(var/mob/O in (oviewers(brainmob) - user))
-					O.show_message("\red [brainmob] is having \his connections to the brain delicately severed with [W] by [user].", 1)
-				brainmob << "\red [user] begins to cut open your head with [W]!"
-				user << "\red You cut [brainmob]'s head open with [W]!"
-
-				brain_op_stage = 3.0
-			else
-				..()
-	else if(istype(W,/obj/item/weapon/circular_saw))
-		switch(brain_op_stage)
-			if(1)
-				for(var/mob/O in (oviewers(brainmob) - user))
-					O.show_message("\red [brainmob] has \his head sawed open with [W] by [user].", 1)
-				brainmob << "\red [user] begins to saw open your head with [W]!"
-				user << "\red You saw [brainmob]'s head open with [W]!"
-
-				brain_op_stage = 2
-			if(3)
-				for(var/mob/O in (oviewers(brainmob) - user))
-					O.show_message("\red [brainmob] has \his spine's connection to the brain severed with [W] by [user].", 1)
-				brainmob << "\red [user] severs your brain's connection to the spine with [W]!"
-				user << "\red You sever [brainmob]'s brain's connection to the spine with [W]!"
-
-				user.attack_log += "\[[time_stamp()]\]<font color='red'> Debrained [brainmob.name] ([brainmob.ckey]) with [W.name] (INTENT: [uppertext(user.a_intent)])</font>"
-				brainmob.attack_log += "\[[time_stamp()]\]<font color='orange'> Debrained by [user.name] ([user.ckey]) with [W.name] (INTENT: [uppertext(user.a_intent)])</font>"
-				msg_admin_attack("[key_name_admin(user)] debrained [key_name_admin(brainmob)] (INTENT: [uppertext(user.a_intent)]) (<A HREF='?_src_=holder;adminplayerobservecoodjump=1;X=[user.x];Y=[user.y];Z=[user.z]'>JMP</a>)")
-
-				//TODO: ORGAN REMOVAL UPDATE.
-				if(istype(src,/obj/item/weapon/organ/head/posi))
-					var/obj/item/device/mmi/posibrain/B = new(loc)
-					B.transfer_identity(brainmob)
+obj/item/weapon/organ/attackby(obj/item/weapon/W as obj, mob/user as mob)
+	switch(op_stage)
+		if(0)
+			if(istype(W,/obj/item/weapon/scalpel))
+				user.visible_message("<span class='danger'><b>[user]</b> cuts [src] open with [W]!")
+				op_stage++
+				return
+		if(1)
+			if(istype(W,/obj/item/weapon/retractor))
+				user.visible_message("<span class='danger'><b>[user]</b> cracks [src] open like an egg with [W]!")
+				op_stage++
+				return
+		if(2)
+			if(istype(W,/obj/item/weapon/hemostat))
+				if(contents.len)
+					var/obj/item/removing = pick(contents)
+					removing.loc = get_turf(user.loc)
+					if(!(user.l_hand && user.r_hand))
+						user.put_in_hands(removing)
+					if(istype(removing,/obj/item/organ))
+						var/obj/item/organ/removed_organ = removing
+						organs_internal -= removed_organ.organ_data
+					user.visible_message("<span class='danger'><b>[user]</b> extracts [removing] from [src] with [W]!")
 				else
-					var/obj/item/organ/brain/B = new(loc)
-					B.transfer_identity(brainmob)
-
-				brain_op_stage = 4.0
-			else
-				..()
-	else
-		..()
+					user.visible_message("<span class='danger'><b>[user]</b> fishes around fruitlessly in [src] with [W].")
+				return
+	..()
\ No newline at end of file
diff --git a/code/modules/organs/organ_internal.dm b/code/modules/organs/organ_internal.dm
index 494e375e..6b9595d9 100644
--- a/code/modules/organs/organ_internal.dm
+++ b/code/modules/organs/organ_internal.dm
@@ -16,6 +16,7 @@
 	var/rejecting            // Is this organ already being rejected?
 	var/obj/item/organ/organ_holder // If not in a body, held in this item.
 	var/list/transplant_data
+
 /datum/organ/internal/proc/rejuvenate()
 	damage=0
 
@@ -40,8 +41,8 @@
 			E.internal_organs |= src
 
 /datum/organ/internal/process()
-	//Process infections
 
+	//Process infections
 	if (robotic >= 2 || (owner.species && owner.species.flags & IS_PLANT))	//TODO make robotic internal and external organs separate types of organ instead of a flag
 		germ_level = 0
 		return
@@ -172,7 +173,9 @@
 	removed_type = /obj/item/organ/liver
 
 	process()
+
 		..()
+
 		if (germ_level > INFECTION_LEVEL_ONE)
 			if(prob(1))
 				owner << "\red Your skin itches."
@@ -271,7 +274,13 @@
 
 	if(!removed_type) return 0
 
-	var/obj/item/organ/removed_organ = new removed_type(get_turf(user))
+	var/turf/target_loc
+	if(user)
+		target_loc = get_turf(user)
+	else
+		target_loc = get_turf(owner)
+
+	var/obj/item/organ/removed_organ = new removed_type(target_loc)
 
 	if(istype(removed_organ))
 		removed_organ.organ_data = src
diff --git a/code/modules/organs/organ_objects.dm b/code/modules/organs/organ_objects.dm
index 8e4faaab..a97f1f28 100644
--- a/code/modules/organs/organ_objects.dm
+++ b/code/modules/organs/organ_objects.dm
@@ -76,7 +76,7 @@
 /obj/item/organ/proc/update()
 
 	if(!organ_data)
-		organ_data = new /datum/organ/internal()
+		organ_data = new organ_type()
 
 	if(robotic)
 		organ_data.robotic = robotic
@@ -93,6 +93,7 @@
 	organ_tag = "heart"
 	fresh = 6 // Juicy.
 	dead_icon = "heart-off"
+	organ_type = /datum/organ/internal/heart
 
 /obj/item/organ/lungs
 	name = "lungs"
@@ -101,6 +102,7 @@
 	prosthetic_name = "gas exchange system"
 	prosthetic_icon = "lungs-prosthetic"
 	organ_tag = "lungs"
+	organ_type = /datum/organ/internal/lungs
 
 /obj/item/organ/kidneys
 	name = "kidneys"
@@ -109,6 +111,7 @@
 	prosthetic_name = "prosthetic kidneys"
 	prosthetic_icon = "kidneys-prosthetic"
 	organ_tag = "kidneys"
+	organ_type = /datum/organ/internal/kidney
 
 /obj/item/organ/eyes
 	name = "eyeballs"
@@ -117,7 +120,7 @@
 	prosthetic_name = "visual prosthesis"
 	prosthetic_icon = "eyes-prosthetic"
 	organ_tag = "eyes"
-
+	organ_type = /datum/organ/internal/eyes
 	var/eye_colour
 
 /obj/item/organ/liver
@@ -126,11 +129,13 @@
 	prosthetic_name = "toxin filter"
 	prosthetic_icon = "liver-prosthetic"
 	organ_tag = "liver"
+	organ_type = /datum/organ/internal/liver
 
 /obj/item/organ/appendix
 	name = "appendix"
 	icon_state = "appendix"
 	organ_tag = "appendix"
+	organ_type = /datum/organ/internal/appendix
 
 //These are here so they can be printed out via the fabricator.
 /obj/item/organ/heart/prosthetic
@@ -151,15 +156,28 @@
 /obj/item/organ/appendix
 	name = "appendix"
 
-/obj/item/organ/proc/removed(var/mob/living/target,var/mob/living/user)
+/obj/item/organ/proc/removed(var/mob/living/carbon/human/target,var/mob/living/user)
 
-	if(!target || !user)
+	if(!istype(target) || !organ_data)
 		return
 
-	if(organ_data.vital)
+	target.internal_organs_by_name[organ_tag] = null
+	target.internal_organs_by_name -= organ_tag
+	target.internal_organs -= organ_data
+
+	var/datum/organ/external/affected = target.get_organ(organ_data.parent_organ)
+	affected.internal_organs -= organ_data
+
+	loc = target.loc
+	organ_data.rejecting = null
+	var/datum/reagent/blood/organ_blood = locate(/datum/reagent/blood) in reagents.reagent_list
+	if(!organ_blood || !organ_blood.data["blood_DNA"])
+		target.vessel.trans_to(src, 5, 1, 1)
+
+	if(target && user && organ_data.vital)
 		user.attack_log += "\[[time_stamp()]\]<font color='red'> removed a vital organ ([src]) from [target.name] ([target.ckey]) (INTENT: [uppertext(user.a_intent)])</font>"
 		target.attack_log += "\[[time_stamp()]\]<font color='orange'> had a vital organ ([src]) removed by [user.name] ([user.ckey]) (INTENT: [uppertext(user.a_intent)])</font>"
-		msg_admin_attack("[key_name_admin(user)] removed a vital organ ([src]) from [key_name_admin(target)] (INTENT: [uppertext(user.a_intent)]) (<A HREF='?_src_=holder;adminplayerobservecoodjump=1;X=[user.x];Y=[user.y];Z=[user.z]'>JMP</a>)")
+		msg_admin_attack("[user.name] ([user.ckey]) removed a vital organ ([src]) from [target.name] ([target.ckey]) (INTENT: [uppertext(user.a_intent)]) (<A HREF='?_src_=holder;adminplayerobservecoodjump=1;X=[user.x];Y=[user.y];Z=[user.z]'>JMP</a>)")
 		target.death()
 
 /obj/item/organ/appendix/removed(var/mob/living/target,var/mob/living/user)
@@ -196,18 +214,40 @@
 		H.b_eyes = 0
 		H.update_body()
 
-/obj/item/organ/proc/replaced(var/mob/living/target)
-	return
+/obj/item/organ/proc/replaced(var/mob/living/carbon/human/target,var/datum/organ/external/affected)
 
-/obj/item/organ/eyes/replaced(var/mob/living/target)
+	if(!istype(target)) return
+
+	var/datum/reagent/blood/transplant_blood = locate(/datum/reagent/blood) in reagents.reagent_list
+	if(!transplant_blood)
+		organ_data.transplant_data = list()
+		organ_data.transplant_data["species"] =    target.species.name
+		organ_data.transplant_data["blood_type"] = target.dna.b_type
+		organ_data.transplant_data["blood_DNA"] =  target.dna.unique_enzymes
+	else
+		organ_data.transplant_data = list()
+		organ_data.transplant_data["species"] =    transplant_blood.data["species"]
+		organ_data.transplant_data["blood_type"] = transplant_blood.data["blood_type"]
+		organ_data.transplant_data["blood_DNA"] =  transplant_blood.data["blood_DNA"]
+
+	organ_data.organ_holder = null
+	organ_data.owner = target
+	target.internal_organs |= organ_data
+	affected.internal_organs |= organ_data
+	target.internal_organs_by_name[organ_tag] = organ_data
+	organ_data.status |= ORGAN_CUT_AWAY
+
+	del(src)
+
+/obj/item/organ/eyes/replaced(var/mob/living/carbon/human/target)
 
 	// Apply our eye colour to the target.
-	var/mob/living/carbon/human/H = target
-	if(istype(H) && eye_colour)
-		H.r_eyes = eye_colour[1]
-		H.g_eyes = eye_colour[2]
-		H.b_eyes = eye_colour[3]
-		H.update_body()
+	if(istype(target) && eye_colour)
+		target.r_eyes = eye_colour[1]
+		target.g_eyes = eye_colour[2]
+		target.b_eyes = eye_colour[3]
+		target.update_body()
+	..()
 
 /obj/item/organ/proc/bitten(mob/user)
 
diff --git a/code/modules/surgery/appendix.dm b/code/modules/surgery/appendix.dm
deleted file mode 100644
index 91332eab..00000000
--- a/code/modules/surgery/appendix.dm
+++ /dev/null
@@ -1,89 +0,0 @@
-//Procedures in this file: Appendectomy
-//////////////////////////////////////////////////////////////////
-//						APPENDECTOMY							//
-//////////////////////////////////////////////////////////////////
-
-/datum/surgery_step/appendectomy/
-	priority = 2
-	can_infect = 1
-	blood_level = 1
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		if (!hasorgans(target))
-			return 0
-		if (target_zone != "groin")
-			return 0
-		var/datum/organ/external/groin = target.get_organ("groin")
-		if (!groin)
-			return 0
-		if (groin.open < 2)
-			return 0
-		return 1
-
-/datum/surgery_step/appendectomy/cut_appendix
-	allowed_tools = list(
-	/obj/item/weapon/scalpel = 100,		\
-	/obj/item/weapon/kitchenknife = 75,	\
-	/obj/item/weapon/shard = 50, 		\
-	)
-
-	min_duration = 70
-	max_duration = 90
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return ..() && target.op_stage.appendix == 0
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("[user] starts to separate [target]'s appendix from the abdominal wall with \the [tool].", \
-		"You start to separate [target]'s appendix from the abdominal wall with \the [tool]." )
-		target.custom_pain("The pain in your abdomen is living hell!",1)
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\blue [user] has separated [target]'s appendix with \the [tool]." , \
-		"\blue You have separated [target]'s appendix with \the [tool].")
-		target.op_stage.appendix = 1
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/datum/organ/external/groin = target.get_organ("groin")
-		user.visible_message("\red [user]'s hand slips, slicing an artery inside [target]'s abdomen with \the [tool]!", \
-		"\red Your hand slips, slicing an artery inside [target]'s abdomen with \the [tool]!")
-		groin.createwound(CUT, 50, 1)
-
-/datum/surgery_step/appendectomy/remove_appendix
-	allowed_tools = list(
-	/obj/item/weapon/hemostat = 100,	\
-	/obj/item/weapon/wirecutters = 75,	\
-	/obj/item/weapon/kitchen/utensil/fork = 20
-	)
-
-	min_duration = 60
-	max_duration = 80
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return ..() && target.op_stage.appendix == 1
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("[user] starts removing [target]'s appendix with \the [tool].", \
-		"You start removing [target]'s appendix with \the [tool].")
-		target.custom_pain("Someone's ripping out your bowels!",1)
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\blue [user] has removed [target]'s appendix with \the [tool].", \
-		"\blue You have removed [target]'s appendix with \the [tool].")
-		var/app = 0
-		for(var/datum/disease/appendicitis/appendicitis in target.viruses)
-			app = 1
-			appendicitis.cure()
-			target.resistances += appendicitis
-		if (app)
-			new /obj/item/weapon/reagent_containers/food/snacks/appendix/inflamed(get_turf(target))
-		else
-			new /obj/item/weapon/reagent_containers/food/snacks/appendix(get_turf(target))
-		target.op_stage.appendix = 2
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/datum/organ/external/affected = target.get_organ(target_zone)
-		user.visible_message("\red [user]'s hand slips, nicking internal organs in [target]'s abdomen with \the [tool]!", \
-		"\red Your hand slips, nicking internal organs in [target]'s abdomen with \the [tool]!")
-		affected.createwound(BRUISE, 20)
diff --git a/code/modules/surgery/braincore.dm b/code/modules/surgery/braincore.dm
deleted file mode 100644
index c3793ccc..00000000
--- a/code/modules/surgery/braincore.dm
+++ /dev/null
@@ -1,279 +0,0 @@
-//Procedures in this file: Brain extraction. Brain fixing. Slime Core extraction.
-//////////////////////////////////////////////////////////////////
-//						BRAIN SURGERY							//
-//////////////////////////////////////////////////////////////////
-
-/datum/surgery_step/brain/
-	priority = 2
-	blood_level = 1
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return target_zone == "head" && hasorgans(target)
-
-/datum/surgery_step/brain/saw_skull
-	allowed_tools = list(
-	/obj/item/weapon/circular_saw = 100, \
-	/obj/item/weapon/hatchet = 75
-	)
-
-	min_duration = 50
-	max_duration = 70
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return ..() && target_zone == "head" && target.brain_op_stage == 1
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("[user] begins to cut through [target]'s skull with \the [tool].", \
-		"You begin to cut through [target]'s skull with \the [tool].")
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\blue [user] has cut [target]'s skull open with \the [tool].",		\
-		"\blue You have cut [target]'s skull open with \the [tool].")
-		target.brain_op_stage = 2
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\red [user]'s hand slips, cracking [target]'s skull with \the [tool]!" , \
-		"\red Your hand slips, cracking [target]'s skull with \the [tool]!" )
-		target.apply_damage(max(10, tool.force), BRUTE, "head")
-
-/datum/surgery_step/brain/cut_brain
-	allowed_tools = list(
-	/obj/item/weapon/scalpel = 100,		\
-	/obj/item/weapon/kitchenknife = 75,	\
-	/obj/item/weapon/shard = 50, 		\
-	)
-
-	min_duration = 80
-	max_duration = 100
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return ..() && target.brain_op_stage == 2
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("[user] starts separating connections to [target]'s brain with \the [tool].", \
-		"You start separating connections to [target]'s brain with \the [tool].")
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\blue [user] separates connections to [target]'s brain with \the [tool].",	\
-		"\blue You separate connections to [target]'s brain with \the [tool].")
-		target.brain_op_stage = 3
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\red [user]'s hand slips, cutting a vein in [target]'s brain with \the [tool]!", \
-		"\red Your hand slips, cutting a vein in [target]'s brain with \the [tool]!")
-		target.apply_damage(50, BRUTE, "head", 1, sharp=1)
-
-/datum/surgery_step/brain/saw_spine
-	allowed_tools = list(
-	/obj/item/weapon/circular_saw = 100, \
-	/obj/item/weapon/hatchet = 75
-	)
-
-	min_duration = 50
-	max_duration = 70
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return ..() && target.brain_op_stage == 3
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("[user] starts separating [target]'s brain from \his spine with \the [tool].", \
-		"You start separating [target]'s brain from spine with \the [tool].")
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\blue [user] separates [target]'s brain from \his spine with \the [tool].",	\
-		"\blue You separate [target]'s brain from spine with \the [tool].")
-
-		var/mob/living/simple_animal/borer/borer = target.has_brain_worms()
-
-		if(borer)
-			borer.detatch() //Should remove borer if the brain is removed - RR
-
-		user.attack_log += "\[[time_stamp()]\]<font color='red'> Debrained [target.name] ([target.ckey]) with [tool.name] (INTENT: [uppertext(user.a_intent)])</font>"
-		target.attack_log += "\[[time_stamp()]\]<font color='orange'> Debrained by [user.name] ([user.ckey]) with [tool.name] (INTENT: [uppertext(user.a_intent)])</font>"
-		msg_admin_attack("[key_name_admin(user)] debrained [key_name_admin(target)] with [tool.name] (INTENT: [uppertext(user.a_intent)]) (<A HREF='?_src_=holder;adminplayerobservecoodjump=1;X=[user.x];Y=[user.y];Z=[user.z]'>JMP</a>)")
-
-		var/mob/living/carbon/human/H
-		if(istype(target,/mob/living/carbon/human))
-			H = target
-
-		var/obj/item/brain/B
-		if(H && H.species && H.species.flags & IS_SYNTHETIC)
-			var/obj/item/device/mmi/posibrain/P = new(target.loc)
-			P.transfer_identity(target)
-		else
-			B = new(target.loc)
-			B.transfer_identity(target)
-
-		target.internal_organs -= B
-		target.internal_organs_by_name -= "brain"
-
-		target:brain_op_stage = 4.0
-		target.death()//You want them to die after the brain was transferred, so not to trigger client death() twice.
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\red [user]'s hand slips, cutting a vein in [target]'s brain with \the [tool]!", \
-		"\red Your hand slips, cutting a vein in [target]'s brain with \the [tool]!")
-		target.apply_damage(30, BRUTE, "head", 1, sharp=1)
-		if (ishuman(user))
-			user:bloody_body(target)
-			user:bloody_hands(target, 0)
-
-
-//////////////////////////////////////////////////////////////////
-//				BRAIN DAMAGE FIXING								//
-//////////////////////////////////////////////////////////////////
-
-/datum/surgery_step/brain/bone_chips
-	allowed_tools = list(
-	/obj/item/weapon/hemostat = 100, 		\
-	/obj/item/weapon/wirecutters = 75, 		\
-	/obj/item/weapon/kitchen/utensil/fork = 20
-	)
-
-	min_duration = 80
-	max_duration = 100
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return ..() && target.brain_op_stage == 2
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("[user] starts taking bone chips out of [target]'s brain with \the [tool].", \
-		"You start taking bone chips out of [target]'s brain with \the [tool].")
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\blue [user] takes out all the bone chips in [target]'s brain with \the [tool].",	\
-		"\blue You take out all the bone chips in [target]'s brain with \the [tool].")
-		target.brain_op_stage = 3
-
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\red [user]'s hand slips, jabbing \the [tool] in [target]'s brain!", \
-		"\red Your hand slips, jabbing \the [tool] in [target]'s brain!")
-		target.apply_damage(30, BRUTE, "head", 1, sharp=1)
-
-/datum/surgery_step/brain/hematoma
-	allowed_tools = list(
-	/obj/item/weapon/FixOVein = 100, \
-	/obj/item/weapon/cable_coil = 75
-	)
-
-	min_duration = 90
-	max_duration = 110
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return ..() && target.brain_op_stage == 3
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("[user] starts mending hematoma in [target]'s brain with \the [tool].", \
-		"You start mending hematoma in [target]'s brain with \the [tool].")
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\blue [user] mends hematoma in [target]'s brain with \the [tool].",	\
-		"\blue You mend hematoma in [target]'s brain with \the [tool].")
-		var/datum/organ/internal/brain/sponge = target.internal_organs_by_name["brain"]
-		if (sponge)
-			sponge.damage = 0
-
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\red [user]'s hand slips, bruising [target]'s brain with \the [tool]!", \
-		"\red Your hand slips, bruising [target]'s brain with \the [tool]!")
-		target.apply_damage(20, BRUTE, "head", 1, sharp=1)
-
-//////////////////////////////////////////////////////////////////
-//				SLIME CORE EXTRACTION							//
-//////////////////////////////////////////////////////////////////
-
-/datum/surgery_step/slime
-	is_valid_target(mob/living/carbon/slime/target)
-		return istype(target, /mob/living/carbon/slime/)
-
-	can_use(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		return target.stat == 2
-
-/datum/surgery_step/slime/cut_flesh
-	allowed_tools = list(
-	/obj/item/weapon/scalpel = 100,		\
-	/obj/item/weapon/kitchenknife = 75,	\
-	/obj/item/weapon/shard = 50, 		\
-	)
-
-	min_duration = 30
-	max_duration = 50
-
-	can_use(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		return ..() && target.brain_op_stage == 0
-
-	begin_step(mob/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		user.visible_message("[user] starts cutting through [target]'s flesh with \the [tool].", \
-		"You start cutting through [target]'s flesh with \the [tool].")
-
-	end_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		user.visible_message("\blue [user] cuts through [target]'s flesh with \the [tool].",	\
-		"\blue You cut through [target]'s flesh with \the [tool], revealing its silky innards.")
-		target.brain_op_stage = 1
-
-	fail_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		user.visible_message("\red [user]'s hand slips, tearing [target]'s flesh with \the [tool]!", \
-		"\red Your hand slips, tearing [target]'s flesh with \the [tool]!")
-
-/datum/surgery_step/slime/cut_innards
-	allowed_tools = list(
-	/obj/item/weapon/scalpel = 100,		\
-	/obj/item/weapon/kitchenknife = 75,	\
-	/obj/item/weapon/shard = 50, 		\
-	)
-
-	min_duration = 30
-	max_duration = 50
-
-	can_use(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		return ..() && target.brain_op_stage == 1
-
-	begin_step(mob/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		user.visible_message("[user] starts cutting [target]'s silky innards apart with \the [tool].", \
-		"You start cutting [target]'s silky innards apart with \the [tool].")
-
-	end_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		user.visible_message("\blue [user] cuts [target]'s innards apart with \the [tool], exposing the cores.",	\
-		"\blue You cut [target]'s innards apart with \the [tool], exposing the cores.")
-		target.brain_op_stage = 2
-
-	fail_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		user.visible_message("\red [user]'s hand slips, tearing [target]'s innards with \the [tool]!", \
-		"\red Your hand slips, tearing [target]'s innards with \the [tool]!")
-
-/datum/surgery_step/slime/saw_core
-	allowed_tools = list(
-	/obj/item/weapon/circular_saw = 100, \
-	/obj/item/weapon/hatchet = 75
-	)
-
-	min_duration = 50
-	max_duration = 70
-
-	can_use(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		return ..() && target.brain_op_stage == 2 && target.cores > 0
-
-	begin_step(mob/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		user.visible_message("[user] starts cutting out one of [target]'s cores with \the [tool].", \
-		"You start cutting out one of [target]'s cores with \the [tool].")
-
-	end_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		target.cores--
-		user.visible_message("\blue [user] cuts out one of [target]'s cores with \the [tool].",,	\
-		"\blue You cut out one of [target]'s cores with \the [tool]. [target.cores] cores left.")
-
-		if(target.cores >= 0)
-			new target.coretype(target.loc)
-		if(target.cores <= 0)
-			target.icon_state = "[target.colour] baby slime dead-nocore"
-
-
-	fail_step(mob/living/user, mob/living/carbon/slime/target, target_zone, obj/item/tool)
-		user.visible_message("\red [user]'s hand slips, causing \him to miss the core!", \
-		"\red Your hand slips, causing you to miss the core!")
\ No newline at end of file
diff --git a/code/modules/surgery/generic.dm b/code/modules/surgery/generic.dm
index 0f1ea7c5..0cf7dfef 100644
--- a/code/modules/surgery/generic.dm
+++ b/code/modules/surgery/generic.dm
@@ -59,8 +59,6 @@
 		affected.createwound(CUT, 1)
 		affected.clamp()
 		spread_germs_to_organ(affected, user)
-//		if (target_zone == "head")
-//			target.brain_op_stage = 1
 
 	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
@@ -101,8 +99,6 @@
 		affected.createwound(CUT, 1)
 		affected.clamp()
 		affected.open = 2
-//		if (target_zone == "head")
-//			target.brain_op_stage = 1
 
 	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
@@ -143,8 +139,6 @@
 			affected.status |= ORGAN_BLEEDING
 
 		affected.createwound(CUT, 1)
-//		if (target_zone == "head")
-//			target.brain_op_stage = 1
 
 	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
@@ -311,7 +305,7 @@
 		var/datum/organ/external/affected = target.get_organ(target_zone)
 		user.visible_message("\blue [user] cuts off [target]'s [affected.display_name] with \the [tool].", \
 		"\blue You cut off [target]'s [affected.display_name] with \the [tool].")
-		affected.droplimb(1,0)
+		affected.droplimb(1,1,1)
 
 	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
diff --git a/code/modules/surgery/headreattach.dm b/code/modules/surgery/headreattach.dm
index 72da44cc..4960e406 100644
--- a/code/modules/surgery/headreattach.dm
+++ b/code/modules/surgery/headreattach.dm
@@ -181,11 +181,11 @@
 		target.update_body()
 		target.updatehealth()
 		target.UpdateDamageIcon()
-		var/obj/item/weapon/organ/head/B = tool
-		if (B.brainmob.mind)
-			B.brainmob.mind.transfer_to(target)
-		del(B)
-
+		for(var/obj/item/organ/replacing_organ in tool)
+			replacing_organ.loc = get_turf(tool)
+			replacing_organ.replaced(target,affected)
+			del(replacing_organ) //Just in case.
+		del(tool)
 
 	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
diff --git a/code/modules/surgery/implant.dm b/code/modules/surgery/implant.dm
index 54cbcae4..a795dd10 100644
--- a/code/modules/surgery/implant.dm
+++ b/code/modules/surgery/implant.dm
@@ -112,7 +112,7 @@
 	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		if(..())
 			var/datum/organ/external/affected = target.get_organ(target_zone)
-			return !affected.hidden && affected.cavity && tool.w_class <= get_max_wclass(affected)
+			return !istype(user,/mob/living/silicon/robot) && !affected.hidden && affected.cavity && tool.w_class <= get_max_wclass(affected)
 
 	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
@@ -198,12 +198,13 @@
 					if(worm.controlling)
 						target.release_control()
 					worm.detatch()
-
-				obj.loc = get_turf(target)
-				if(istype(obj,/obj/item/weapon/implant))
-					var/obj/item/weapon/implant/imp = obj
-					imp.imp_in = null
-					imp.implanted = 0
+					worm.leave_host()
+				else
+					obj.loc = get_turf(target)
+					if(istype(obj,/obj/item/weapon/implant))
+						var/obj/item/weapon/implant/imp = obj
+						imp.imp_in = null
+						imp.implanted = 0
 			else
 				user.visible_message("\blue [user] removes \the [tool] from [target]'s [affected.display_name].", \
 				"\blue There's something inside [target]'s [affected.display_name], but you just missed it this time." )
diff --git a/code/modules/surgery/organs_internal.dm b/code/modules/surgery/organs_internal.dm
index ee7d5606..19f64c5d 100644
--- a/code/modules/surgery/organs_internal.dm
+++ b/code/modules/surgery/organs_internal.dm
@@ -58,8 +58,7 @@
 /datum/surgery_step/internal/fix_organ
 	allowed_tools = list(
 	/obj/item/stack/medical/advanced/bruise_pack= 100,		\
-	/obj/item/stack/medical/bruise_pack = 20,	\
-	/obj/item/stack/medical/bruise_pack/tajaran = 70, 		\
+	/obj/item/stack/medical/bruise_pack = 20
 	)
 
 	min_duration = 70
@@ -82,11 +81,8 @@
 		var/tool_name = "\the [tool]"
 		if (istype(tool, /obj/item/stack/medical/advanced/bruise_pack))
 			tool_name = "regenerative membrane"
-		if (istype(tool, /obj/item/stack/medical/bruise_pack))
-			if (istype(tool, /obj/item/stack/medical/bruise_pack/tajaran))
-				tool_name = "the poultice"
-			else
-				tool_name = "the bandaid"
+		else if (istype(tool, /obj/item/stack/medical/bruise_pack))
+			tool_name = "the bandaid"
 
 		if (!hasorgans(target))
 			return
@@ -106,10 +102,7 @@
 		if (istype(tool, /obj/item/stack/medical/advanced/bruise_pack))
 			tool_name = "regenerative membrane"
 		if (istype(tool, /obj/item/stack/medical/bruise_pack))
-			if (istype(tool, /obj/item/stack/medical/bruise_pack/tajaran))
-				tool_name = "the poultice"
-			else
-				tool_name = "the bandaid"
+			tool_name = "the bandaid"
 
 		if (!hasorgans(target))
 			return
@@ -136,12 +129,9 @@
 			target.adjustToxLoss(5)
 
 		else if (istype(tool, /obj/item/stack/medical/bruise_pack))
-			if (istype(tool, /obj/item/stack/medical/bruise_pack/tajaran))
-				target.adjustToxLoss(7)
-			else
-				dam_amt = 5
-				target.adjustToxLoss(10)
-				affected.createwound(CUT, 5)
+			dam_amt = 5
+			target.adjustToxLoss(10)
+			affected.createwound(CUT, 5)
 
 		for(var/datum/organ/internal/I in affected.internal_organs)
 			if(I && I.damage > 0)
@@ -314,30 +304,12 @@
 
 		// Extract the organ!
 		if(target.op_stage.current_organ)
-
-			var/datum/organ/external/affected = target.get_organ(target_zone)
 			var/datum/organ/internal/I = target.internal_organs_by_name[target.op_stage.current_organ]
-
 			var/obj/item/organ/O
 			if(I && istype(I))
 				O = I.remove(user)
 				if(O && istype(O))
-
-					// Stop the organ from continuing to reject.
-					O.organ_data.rejecting = null
-
-					// Transfer over some blood data, if the organ doesn't have data.
-					var/datum/reagent/blood/organ_blood = locate(/datum/reagent/blood) in O.reagents.reagent_list
-					if(!organ_blood || !organ_blood.data["blood_DNA"])
-						target.vessel.trans_to(O, 5, 1, 1)
-
-					// Kinda redundant, but I'm getting some buggy behavior.
-					target.internal_organs_by_name[target.op_stage.current_organ] = null
-					target.internal_organs_by_name -= target.op_stage.current_organ
-					target.internal_organs -= O.organ_data
-					affected.internal_organs -= O.organ_data
 					O.removed(target,user)
-
 			target.op_stage.current_organ = null
 
 	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
@@ -409,30 +381,8 @@
 		"\blue You have transplanted \the [tool] into [target]'s [affected.display_name].")
 		user.drop_item(tool)
 		var/obj/item/organ/O = tool
-
 		if(istype(O))
-
-			var/datum/reagent/blood/transplant_blood = locate(/datum/reagent/blood) in O.reagents.reagent_list
-			if(!transplant_blood)
-				O.organ_data.transplant_data = list()
-				O.organ_data.transplant_data["species"] =    target.species.name
-				O.organ_data.transplant_data["blood_type"] = target.dna.b_type
-				O.organ_data.transplant_data["blood_DNA"] =  target.dna.unique_enzymes
-			else
-				O.organ_data.transplant_data = list()
-				O.organ_data.transplant_data["species"] =    transplant_blood.data["species"]
-				O.organ_data.transplant_data["blood_type"] = transplant_blood.data["blood_type"]
-				O.organ_data.transplant_data["blood_DNA"] =  transplant_blood.data["blood_DNA"]
-
-			O.organ_data.organ_holder = null
-			O.organ_data.owner = target
-			target.internal_organs |= O.organ_data
-			affected.internal_organs |= O.organ_data
-			target.internal_organs_by_name[O.organ_tag] = O.organ_data
-			O.organ_data.status |= ORGAN_CUT_AWAY
-			O.replaced(target)
-
-		del(O)
+			O.replaced(target,affected)
 
 	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		user.visible_message("\red [user]'s hand slips, damaging \the [tool]!", \
diff --git a/code/modules/surgery/other.dm b/code/modules/surgery/other.dm
index 6ac5da27..38ca2903 100644
--- a/code/modules/surgery/other.dm
+++ b/code/modules/surgery/other.dm
@@ -59,7 +59,7 @@
 		/obj/item/weapon/kitchenknife = 75,	\
 		/obj/item/weapon/shard = 50, 		\
 	)
-	
+
 	can_infect = 1
 	blood_level = 1
 
@@ -72,7 +72,7 @@
 
 		if (target_zone == "mouth" || target_zone == "eyes")
 			return 0
-		
+
 		var/datum/organ/external/affected = target.get_organ(target_zone)
 
 		return affected.open >= 2 && (affected.status & ORGAN_DEAD)
@@ -105,7 +105,7 @@
 		/obj/item/weapon/reagent_containers/spray = 50,
 		/obj/item/weapon/reagent_containers/glass/bucket = 50,
 	)
-	
+
 	can_infect = 0
 	blood_level = 0
 
@@ -115,7 +115,7 @@
 	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		if (!istype(tool, /obj/item/weapon/reagent_containers))
 			return 0
-		
+
 		var/obj/item/weapon/reagent_containers/container = tool
 		if(!container.reagents.has_reagent("peridaxon"))
 			return 0
@@ -125,7 +125,7 @@
 
 		if (target_zone == "mouth" || target_zone == "eyes")
 			return 0
-		
+
 		var/datum/organ/external/affected = target.get_organ(target_zone)
 		return affected.open == 3 && (affected.status & ORGAN_DEAD)
 
@@ -138,34 +138,34 @@
 
 	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
-		
+
 		if (!istype(tool, /obj/item/weapon/reagent_containers))
 			return
-		
+
 		var/obj/item/weapon/reagent_containers/container = tool
-		
+
 		var/trans = container.reagents.trans_to(target, container.amount_per_transfer_from_this)
 		if (trans > 0)
 			container.reagents.reaction(target, INGEST)	//technically it's contact, but the reagents are being applied to internal tissue
-			
+
 			if(container.reagents.has_reagent("peridaxon"))
 				affected.status &= ~ORGAN_DEAD
-			
+
 			user.visible_message("\blue [user] applies [trans] units of the solution to affected tissue in [target]'s [affected.display_name]", \
 				"\blue You apply [trans] units of the solution to affected tissue in [target]'s [affected.display_name] with \the [tool].")
 
 	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
-		
+
 		if (!istype(tool, /obj/item/weapon/reagent_containers))
 			return
-		
+
 		var/obj/item/weapon/reagent_containers/container = tool
-		
+
 		var/trans = container.reagents.trans_to(target, container.amount_per_transfer_from_this)
 		container.reagents.reaction(target, INGEST)	//technically it's contact, but the reagents are being applied to internal tissue
-		
+
 		user.visible_message("\red [user]'s hand slips, applying [trans] units of the solution to the wrong place in [target]'s [affected.display_name] with the [tool]!" , \
 		"\red Your hand slips, applying [trans] units of the solution to the wrong place in [target]'s [affected.display_name] with the [tool]!")
-		
+
 		//no damage or anything, just wastes medicine
diff --git a/code/modules/surgery/ribcage.dm b/code/modules/surgery/ribcage.dm
deleted file mode 100644
index c14d065c..00000000
--- a/code/modules/surgery/ribcage.dm
+++ /dev/null
@@ -1,335 +0,0 @@
-//Procedures in this file: Generic ribcage opening steps, Removing alien embryo, Fixing internal organs.
-//////////////////////////////////////////////////////////////////
-//				GENERIC	RIBCAGE SURGERY							//
-//////////////////////////////////////////////////////////////////
-/datum/surgery_step/ribcage
-	priority = 2
-	can_infect = 1
-	blood_level = 1
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return target_zone == "chest"
-
-/datum/surgery_step/ribcage/saw_ribcage
-	allowed_tools = list(
-	/obj/item/weapon/circular_saw = 100, \
-	/obj/item/weapon/hatchet = 75
-	)
-
-	min_duration = 50
-	max_duration = 70
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		if (!hasorgans(target))
-			return
-		var/datum/organ/external/affected = target.get_organ(target_zone)
-		return ..() && target.op_stage.ribcage == 0 && affected.open >= 2
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("[user] begins to cut through [target]'s ribcage with \the [tool].", \
-		"You begin to cut through [target]'s ribcage with \the [tool].")
-		target.custom_pain("Something hurts horribly in your chest!",1)
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\blue [user] has cut [target]'s ribcage open with \the [tool].",		\
-		"\blue You have cut [target]'s ribcage open with \the [tool].")
-		target.op_stage.ribcage = 1
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\red [user]'s hand slips, cracking [target]'s ribcage with \the [tool]!" , \
-		"\red Your hand slips, cracking [target]'s ribcage with \the [tool]!" )
-		var/datum/organ/external/affected = target.get_organ(target_zone)
-		affected.createwound(CUT, 20)
-		affected.fracture()
-
-
-/datum/surgery_step/ribcage/retract_ribcage
-	allowed_tools = list(
-	/obj/item/weapon/retractor = 100, 	\
-	/obj/item/weapon/crowbar = 75,	\
-	/obj/item/weapon/kitchen/utensil/fork = 20
-	)
-
-	min_duration = 30
-	max_duration = 40
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return ..() && target.op_stage.ribcage == 1
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/msg = "[user] starts to force open the ribcage in [target]'s torso with \the [tool]."
-		var/self_msg = "You start to force open the ribcage in [target]'s torso with \the [tool]."
-		user.visible_message(msg, self_msg)
-		target.custom_pain("Something hurts horribly in your chest!",1)
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/msg = "\blue [user] forces open [target]'s ribcage with \the [tool]."
-		var/self_msg = "\blue You force open [target]'s ribcage with \the [tool]."
-		user.visible_message(msg, self_msg)
-		target.op_stage.ribcage = 2
-
-		// Whoops!
-		if(prob(10))
-			var/datum/organ/external/affected = target.get_organ(target_zone)
-			affected.fracture()
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/msg = "\red [user]'s hand slips, breaking [target]'s ribcage!"
-		var/self_msg = "\red Your hand slips, breaking [target]'s ribcage!"
-		user.visible_message(msg, self_msg)
-		var/datum/organ/external/affected = target.get_organ(target_zone)
-		affected.createwound(BRUISE, 20)
-		affected.fracture()
-
-/datum/surgery_step/ribcage/close_ribcage
-	allowed_tools = list(
-	/obj/item/weapon/retractor = 100, 	\
-	/obj/item/weapon/crowbar = 75,	\
-	/obj/item/weapon/kitchen/utensil/fork = 20
-	)
-
-
-	min_duration = 20
-	max_duration = 40
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return ..() && target.op_stage.ribcage == 2
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/msg = "[user] starts bending [target]'s ribcage back into place with \the [tool]."
-		var/self_msg = "You start bending [target]'s ribcage back into place with \the [tool]."
-		user.visible_message(msg, self_msg)
-		target.custom_pain("Something hurts horribly in your chest!",1)
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/msg = "\blue [user] bends [target]'s ribcage back into place with \the [tool]."
-		var/self_msg = "\blue You bend [target]'s ribcage back into place with \the [tool]."
-		user.visible_message(msg, self_msg)
-
-		target.op_stage.ribcage = 1
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/msg = "\red [user]'s hand slips, bending [target]'s ribs the wrong way!"
-		var/self_msg = "\red Your hand slips, bending [target]'s ribs the wrong way!"
-		user.visible_message(msg, self_msg)
-		var/datum/organ/external/chest/affected = target.get_organ("chest")
-		affected.createwound(BRUISE, 20)
-		affected.fracture()
-		if (prob(40))
-			user.visible_message("\red A rib pierces the lung!")
-			target.rupture_lung()
-
-/datum/surgery_step/ribcage/mend_ribcage
-	allowed_tools = list(
-	/obj/item/weapon/bonegel = 100,	\
-	/obj/item/weapon/screwdriver = 75
-	)
-
-	min_duration = 20
-	max_duration = 40
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		return ..() && target.op_stage.ribcage == 1
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/msg = "[user] starts applying \the [tool] to [target]'s ribcage."
-		var/self_msg = "You start applying \the [tool] to [target]'s ribcage."
-		user.visible_message(msg, self_msg)
-		target.custom_pain("Something hurts horribly in your chest!",1)
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/msg = "\blue [user] applied \the [tool] to [target]'s ribcage."
-		var/self_msg = "\blue You applied \the [tool] to [target]'s ribcage."
-		user.visible_message(msg, self_msg)
-
-		target.op_stage.ribcage = 0
-
-//////////////////////////////////////////////////////////////////
-//					ALIEN EMBRYO SURGERY						//
-//////////////////////////////////////////////////////////////////
-/datum/surgery_step/ribcage/remove_embryo
-	allowed_tools = list(
-	/obj/item/weapon/hemostat = 100,	\
-	/obj/item/weapon/wirecutters = 75,	\
-	/obj/item/weapon/kitchen/utensil/fork = 20
-	)
-	blood_level = 2
-
-	min_duration = 80
-	max_duration = 100
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/embryo = 0
-		for(var/obj/item/alien_embryo/A in target)
-			embryo = 1
-			break
-		return ..() && embryo && target.op_stage.ribcage == 2
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/msg = "[user] starts to pull something out from [target]'s ribcage with \the [tool]."
-		var/self_msg = "You start to pull something out from [target]'s ribcage with \the [tool]."
-		user.visible_message(msg, self_msg)
-		target.custom_pain("Something hurts horribly in your chest!",1)
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		user.visible_message("\red [user] rips the larva out of [target]'s ribcage!",
-							 "You rip the larva out of [target]'s ribcage!")
-
-		for(var/obj/item/alien_embryo/A in target)
-			A.loc = A.loc.loc
-
-
-//////////////////////////////////////////////////////////////////
-//				CHEST INTERNAL ORGAN SURGERY					//
-//////////////////////////////////////////////////////////////////
-/datum/surgery_step/ribcage/fix_chest_internal
-	allowed_tools = list(
-	/obj/item/stack/medical/advanced/bruise_pack= 100,		\
-	/obj/item/stack/medical/bruise_pack = 20,	\
-	/obj/item/stack/medical/bruise_pack/tajaran = 70, 		\
-	)
-
-	min_duration = 70
-	max_duration = 90
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		if(!hasorgans(target))
-			return 0
-
-		var/is_chest_organ_damaged = 0
-		var/datum/organ/external/chest/chest = target.get_organ("chest")
-		for(var/datum/organ/internal/I in chest.internal_organs)
-			if(I.damage > 0)
-				is_chest_organ_damaged = 1
-				break
-		return ..() && is_chest_organ_damaged && target.op_stage.ribcage == 2
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/tool_name = "\the [tool]"
-		if (istype(tool, /obj/item/stack/medical/advanced/bruise_pack))
-			tool_name = "regenerative membrane"
-		if (istype(tool, /obj/item/stack/medical/bruise_pack))
-			if (istype(tool, /obj/item/stack/medical/bruise_pack/tajaran))
-				tool_name = "the poultice"
-			else
-				tool_name = "the bandaid"
-		var/datum/organ/external/chest/chest = target.get_organ("chest")
-		for(var/datum/organ/internal/I in chest.internal_organs)
-			if(I && I.damage > 0)
-				if(I.robotic < 2)
-					user.visible_message("[user] starts treating damage to [target]'s [I.name] with [tool_name].", \
-					"You start treating damage to [target]'s [I.name] with [tool_name]." )
-				else
-					user.visible_message("[user] attempts to repair [target]'s mechanical [I.name] with [tool_name]...", \
-					"\blue You attempt to repair [target]'s mechanical [I.name] with [tool_name]...")
-
-		target.custom_pain("The pain in your chest is living hell!",1)
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/tool_name = "\the [tool]"
-		if (istype(tool, /obj/item/stack/medical/advanced/bruise_pack))
-			tool_name = "regenerative membrane"
-		if (istype(tool, /obj/item/stack/medical/bruise_pack))
-			if (istype(tool, /obj/item/stack/medical/bruise_pack/tajaran))
-				tool_name = "the poultice"
-			else
-				tool_name = "the bandaid"
-		var/datum/organ/external/chest/chest = target.get_organ("chest")
-		for(var/datum/organ/internal/I in chest.internal_organs)
-			if(I && I.damage > 0)
-				if(I.robotic < 2)
-					user.visible_message("\blue [user] treats damage to [target]'s [I.name] with [tool_name].", \
-					"\blue You treat damage to [target]'s [I.name] with [tool_name]." )
-				else
-					user.visible_message("\blue [user] pokes [target]'s mechanical [I.name] with [tool_name]...", \
-					"\blue You poke [target]'s mechanical [I.name] with [tool_name]... \red For no effect, since it's robotic.")
-				I.damage = 0
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/datum/organ/external/chest/affected = target.get_organ("chest")
-		user.visible_message("\red [user]'s hand slips, getting mess and tearing the inside of [target]'s chest with \the [tool]!", \
-		"\red Your hand slips, getting mess and tearing the inside of [target]'s chest with \the [tool]!")
-		var/dam_amt = 2
-
-		if (istype(tool, /obj/item/stack/medical/advanced/bruise_pack))
-			target.adjustToxLoss(5)
-
-		else if (istype(tool, /obj/item/stack/medical/bruise_pack))
-			if (istype(tool, /obj/item/stack/medical/bruise_pack/tajaran))
-				target.adjustToxLoss(7)
-			else
-				dam_amt = 5
-				target.adjustToxLoss(10)
-				affected.createwound(CUT, 5)
-
-		for(var/datum/organ/internal/I in affected.internal_organs)
-			if(I && I.damage > 0)
-				I.take_damage(dam_amt,0)
-
-/datum/surgery_step/ribcage/fix_chest_internal_robot //For artificial organs
-	allowed_tools = list(
-	/obj/item/stack/nanopaste = 100,		\
-	/obj/item/weapon/bonegel = 30, 		\
-	/obj/item/weapon/screwdriver = 70,	\
-	)
-
-	min_duration = 70
-	max_duration = 90
-
-	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		if(!hasorgans(target))
-			return 0
-
-		var/is_chest_organ_damaged = 0
-		var/datum/organ/internal/heart/heart = target.internal_organs_by_name["heart"]
-		var/datum/organ/external/chest/chest = target.get_organ("chest")
-		for(var/datum/organ/internal/I in chest.internal_organs) if(I.damage > 0)
-			is_chest_organ_damaged = 1
-			break
-		return ..() && is_chest_organ_damaged && heart.robotic == 2 && target.op_stage.ribcage == 2
-
-	begin_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/datum/organ/internal/heart/heart = target.internal_organs_by_name["heart"]
-
-		if(heart.damage > 0)
-			user.visible_message("[user] starts mending the mechanisms on [target]'s heart with \the [tool].", \
-			"You start mending the mechanisms on [target]'s heart with \the [tool]." )
-		target.custom_pain("The pain in your chest is living hell!",1)
-		..()
-
-	end_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/datum/organ/internal/heart/heart = target.internal_organs_by_name["heart"]
-		if(heart.damage > 0)
-			user.visible_message("\blue [user] repairs [target]'s heart with \the [tool].", \
-			"\blue You repair [target]'s heart with \the [tool]." )
-			heart.damage = 0
-
-	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-		var/datum/organ/internal/heart/heart = target.internal_organs_by_name["heart"]
-		user.visible_message("\red [user]'s hand slips, smearing [tool] in the incision in [target]'s heart, gumming it up!!" , \
-		"\red Your hand slips, smearing [tool] in the incision in [target]'s heart, gumming it up!")
-		heart.take_damage(5, 0)
-		target.adjustToxLoss(5)
-
-//////////////////////////////////////////////////////////////////
-//						HEART SURGERY							//
-//////////////////////////////////////////////////////////////////
-// To be finished after some tests.
-// /datum/surgery_step/ribcage/heart/cut
-//	allowed_tools = list(
-//	/obj/item/weapon/scalpel = 100,		\
-//	/obj/item/weapon/kitchenknife = 75,	\
-//	/obj/item/weapon/shard = 50, 		\
-//	)
-
-//	min_duration = 30
-//	max_duration = 40
-
-//	can_use(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
-//		return ..() && target.op_stage.ribcage == 2
-
diff --git a/code/modules/surgery/surgery.dm b/code/modules/surgery/surgery.dm
index 6822e0c1..a4e6cfdc 100644
--- a/code/modules/surgery/surgery.dm
+++ b/code/modules/surgery/surgery.dm
@@ -5,7 +5,7 @@
 
 	// type path referencing tools that can be used for this step, and how well are they suited for it
 	var/list/allowed_tools = null
-	// type paths referencing mutantraces that this step applies to.
+	// type paths referencing races that this step applies to.
 	var/list/allowed_species = null
 	var/list/disallowed_species = null
 
@@ -82,27 +82,30 @@ proc/do_surgery(mob/living/carbon/M, mob/living/user, obj/item/tool)
 		return 0
 	if (user.a_intent == "harm")	//check for Hippocratic Oath
 		return 0
-	if(M.op_stage.in_progress) //Can't operate on someone repeatedly.
-		user << "\red You can't operate on the patient while surgery is already in progress."
+	var/zone = user.zone_sel.selecting
+	if(zone in M.op_stage.in_progress) //Can't operate on someone repeatedly.
+		user << "\red You can't operate on this area while surgery is already in progress."
 		return 1
-
 	for(var/datum/surgery_step/S in surgery_steps)
 		//check if tool is right or close enough and if this step is possible
 		if(S.tool_quality(tool))
-			var/step_is_valid = S.can_use(user, M, user.zone_sel.selecting, tool)
+			var/step_is_valid = S.can_use(user, M, zone, tool)
 			if(step_is_valid && S.is_valid_target(M))
 				if(step_is_valid == 2) // This is a failure that already has a message for failing.
 					return 1
-				M.op_stage.in_progress = 1
-				S.begin_step(user, M, user.zone_sel.selecting, tool)		//start on it
+				M.op_stage.in_progress += zone
+				S.begin_step(user, M, zone, tool)		//start on it
 				//We had proper tools! (or RNG smiled.) and user did not move or change hands.
 				if(prob(S.tool_quality(tool)) &&  do_mob(user, M, rand(S.min_duration, S.max_duration)))
-					S.end_step(user, M, user.zone_sel.selecting, tool)		//finish successfully
-				else if (tool in user.contents && user.Adjacent(M))			//or
-					S.fail_step(user, M, user.zone_sel.selecting, tool)		//malpractice~
+					S.end_step(user, M, zone, tool)		//finish successfully
+				else if ((tool in user.contents) && user.Adjacent(M))			//or
+					S.fail_step(user, M, zone, tool)		//malpractice~
 				else // This failing silently was a pain.
 					user << "\red You must remain close to your patient to conduct surgery."
-				M.op_stage.in_progress = 0 									// Clear the in-progress flag.
+				M.op_stage.in_progress -= zone 									// Clear the in-progress flag.
+				if (ishuman(M))
+					var/mob/living/carbon/human/H = M
+					H.update_surgery()
 				return	1	  												//don't want to do weapony things after surgery
 
 	if (user.a_intent == "help")
@@ -129,8 +132,6 @@ proc/sort_surgeries()
 /datum/surgery_status/
 	var/eyes	=	0
 	var/face	=	0
-//	var/appendix =	0
-//	var/ribcage =	0
 	var/head_reattach = 0
 	var/current_organ = "organ"
-	var/in_progress = 0
\ No newline at end of file
+	var/list/in_progress = list()
\ No newline at end of file
diff --git a/icons/mob/surgery.dmi b/icons/mob/surgery.dmi
new file mode 100644
index 00000000..20381e09
Binary files /dev/null and b/icons/mob/surgery.dmi differ