diff --git a/code/WorkInProgress/surgery.dm b/code/WorkInProgress/surgery.dm
index 7bb1944ef40..caa01a69346 100644
--- a/code/WorkInProgress/surgery.dm
+++ b/code/WorkInProgress/surgery.dm
@@ -110,9 +110,6 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		spread_germs_to_organ(affected, user)
 		if (target_zone == "head")
 			target.brain_op_stage = 1
-		if (prob(40))
-			if (ishuman(user))
-				user:bloody_hands(target)
 
 	fail_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
@@ -120,7 +117,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		"\red Your hand slips, slicing open [target]'s [affected.display_name] in a wrong spot with \the [tool]!")
 		affected.createwound(CUT, 10)
 		if (ishuman(user))
-			user:bloody_hands(target)
+			user:bloody_hands(target, 0)
 
 /datum/surgery_step/generic/clamp_bleeders
 	required_tool = /obj/item/weapon/hemostat
@@ -151,7 +148,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		"\red Your hand slips, tearing blood vessels and causing massive bleeding in [target]'s [affected.display_name] with \the [tool]!",)
 		affected.createwound(CUT, 10)
 		if (ishuman(user))
-			user:bloody_hands(target)
+			user:bloody_hands(target, 0)
 
 /datum/surgery_step/generic/retract_skin
 	required_tool = /obj/item/weapon/retractor
@@ -188,9 +185,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		user.visible_message(msg, self_msg)
 		affected.open = 2
 		spread_germs_to_organ(affected, user)
-		if (prob(60))
-			if (ishuman(user))
-				user:bloody_hands(target)
+		if (prob(40)) user:bloody_hands(target, 0)
 
 	fail_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
@@ -268,9 +263,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		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
-		if (prob(40))
-			if (ishuman(user))
-				user:bloody_hands(target)
+		if (ishuman(user) && prob(40)) user:bloody_hands(target, 0)
 
 	fail_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/groin = target.get_organ("groin")
@@ -307,9 +300,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 			new /obj/item/weapon/reagent_containers/food/snacks/appendix(get_turf(target))
 		target.resistances += app
 		target.op_stage.appendix = 2
-		if (prob(40))
-			if (ishuman(user))
-				user:bloody_hands(target)
+		if (ishuman(user) && prob(40)) user:bloody_hands(target, 0)
 
 	fail_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
@@ -354,9 +345,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		for(var/datum/wound/W in affected.wounds) if(W.internal)
 			affected.wounds -= W
 			affected.update_damages()
-		if (prob(40))
-			if (ishuman(user))
-				user:bloody_hands(target)
+		if (ishuman(user) && prob(40)) user:bloody_hands(target, 0)
 
 	fail_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
@@ -392,9 +381,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 			"\blue You apply some [tool] to [target]'s bone in [affected.display_name] with \the [tool].")
 		affected.stage = 1
 		spread_germs_to_organ(affected, user)
-		if (prob(80))
-			if (ishuman(user))
-				user:bloody_hands(target)
+		if (ishuman(user) && prob(80)) user:bloody_hands(target, 0)
 
 	fail_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
@@ -489,9 +476,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		affected.stage = 0
 		affected.perma_injury = 0
 		spread_germs_to_organ(affected, user)
-		if (prob(80))
-			if (ishuman(user))
-				user:bloody_hands(target)
+		if (ishuman(user) && prob(80)) user:bloody_hands(target, 0)
 
 	fail_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/affected = target.get_organ(target_zone)
@@ -673,7 +658,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		target.losebreath += 10
 		if (ishuman(user))
 			user:bloody_body(target)
-			user:bloody_hands(target)
+			user:bloody_hands(target, 0)
 
 /datum/surgery_step/face/fix_face
 	required_tool = /obj/item/weapon/retractor
@@ -782,6 +767,9 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		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)
+		if (ishuman(user))
+			user:bloody_body(target)
+			user:bloody_hands(target, 0)
 
 /datum/surgery_step/brain/saw_spine
 	required_tool = /obj/item/weapon/circular_saw
@@ -819,7 +807,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		target.apply_damage(30, BRUTE, "head", 1)
 		if (ishuman(user))
 			user:bloody_body(target)
-			user:bloody_hands(target)
+			user:bloody_hands(target, 0)
 
 
 //////////////////////////////////////////////////////////////////
@@ -1104,7 +1092,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 			affected.fracture()
 
 		if (ishuman(user))
-			user:bloody_hands(target)
+			user:bloody_hands(target, 0)
 
 	fail_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/msg = "\red [user]'s hand slips, breaking [target]'s ribcage!"
@@ -1188,8 +1176,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		for(var/datum/disease/alien_embryo in target.viruses)
 			alien_embryo.cure()
 
-		if (ishuman(user))
-			user:bloody_hands(target)
+		if (ishuman(user)) user:bloody_hands(target, 0)
 
 /datum/surgery_step/ribcage/fix_lungs
 	required_tool = /obj/item/weapon/scalpel
@@ -1210,6 +1197,7 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		user.visible_message("\blue [user] mends the rupture in [target]'s lungs with \the [tool].", \
 		"\blue You mend the rupture in [target]'s lungs with \the [tool]." )
 		affected.ruptured_lungs = 0
+		if (ishuman(user) && prob(80)) user:bloody_hands(target, 0)
 
 	fail_step(mob/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
 		var/datum/organ/external/chest/affected = target.get_organ("chest")
@@ -1217,6 +1205,6 @@ proc/spread_germs_to_organ(datum/organ/external/E, mob/living/carbon/human/user)
 		"\red Your hand slips, slicing an artery inside [target]'s chest with \the [tool]!")
 		affected.createwound(CUT, 20)
 		if (ishuman(user))
-			user:bloody_hands(target)
+			user:bloody_hands(target, 0)
 			user:bloody_body(target)
 
diff --git a/code/modules/mob/living/carbon/human/human_defense.dm b/code/modules/mob/living/carbon/human/human_defense.dm
index ff4809134bc..29b309ae384 100644
--- a/code/modules/mob/living/carbon/human/human_defense.dm
+++ b/code/modules/mob/living/carbon/human/human_defense.dm
@@ -178,14 +178,14 @@ emp_act
 				if(bloody)
 					bloody_body(src)
 
-/mob/living/carbon/human/proc/bloody_hands(var/mob/living/source)
+/mob/living/carbon/human/proc/bloody_hands(var/mob/living/source, var/amount = 2)
 	if (gloves)
 		gloves.add_blood(source)
-		gloves:transfer_blood = 2
+		gloves:transfer_blood = amount
 		gloves:bloody_hands_mob = source
 	else
 		add_blood(source)
-		bloody_hands = 2
+		bloody_hands = amount
 		bloody_hands_mob = source
 	update_inv_gloves()		//updates on-mob overlays for bloody hands and/or bloody gloves