diff --git a/code/game/objects/effects/spiders.dm b/code/game/objects/effects/spiders.dm
index 141eabc61f..ea420e56b9 100644
--- a/code/game/objects/effects/spiders.dm
+++ b/code/game/objects/effects/spiders.dm
@@ -78,18 +78,28 @@
 	New()
 		pixel_x = rand(3,-3)
 		pixel_y = rand(3,-3)
-		processing_objects.Add(src)
-		
+		processing_objects |= src
+
 /obj/effect/spider/eggcluster/Destroy()
-	processing_objects.Remove(src)
+	processing_objects -= src
+	if(istype(loc, /obj/item/organ/external))
+		var/obj/item/organ/external/O = loc
+		O.implants -= src
+
 	..()
 
 /obj/effect/spider/eggcluster/process()
 	amount_grown += rand(0,2)
 	if(amount_grown >= 100)
 		var/num = rand(6,24)
+		var/obj/item/organ/external/O = null
+		if(istype(loc, /obj/item/organ/external))
+			O = loc
+
 		for(var/i=0, i<num, i++)
 			var/obj/effect/spider/spiderling/spiderling = new(src.loc)
+			if(O)
+				O.implants += spiderling
 			spiderling.color = color
 			spiderling.set_light(light_range, light_power, light_color)
 		qdel(src)
@@ -101,6 +111,7 @@
 	anchored = 0
 	layer = 2.7
 	health = 3
+	var/last_itch = 0
 	var/amount_grown = -1
 	var/obj/machinery/atmospherics/unary/vent_pump/entry_vent
 	var/travelling_in_vent = 0
@@ -171,32 +182,47 @@
 			else
 				entry_vent = null
 	//=================
+	else if(isturf(loc))
+		if(prob(25))
+			var/list/nearby = trange(5, src) - loc
+			if(nearby.len)
+				var/target_atom = pick(nearby)
+				walk_to(src, target_atom, 5)
+				if(prob(25))
+					src.visible_message("<span class='notice'>\The [src] skitters[pick(" away"," around","")].</span>")
+		else if(prob(5))
+			//vent crawl!
+			for(var/obj/machinery/atmospherics/unary/vent_pump/v in view(7,src))
+				if(!v.welded)
+					entry_vent = v
+					walk_to(src, entry_vent, 5)
+					break
 
-	else if(prob(25))
-		var/list/nearby = oview(5, src)
-		if(nearby.len)
-			var/target_atom = pick(nearby)
-			walk_to(src, target_atom, 5)
-			if(prob(25))
-				src.visible_message("\blue \the [src] skitters[pick(" away"," around","")].")
-	else if(prob(5))
-		//vent crawl!
-		for(var/obj/machinery/atmospherics/unary/vent_pump/v in view(7,src))
-			if(!v.welded)
-				entry_vent = v
-				walk_to(src, entry_vent, 5)
-				break
-
-	if(prob(1))
-		src.visible_message("\blue \the [src] chitters.")
-	if(isturf(loc) && amount_grown > 0)
-		amount_grown += rand(0,2)
 		if(amount_grown >= 100)
 			var/spawn_type = pick(typesof(/mob/living/simple_animal/hostile/giant_spider))
 			var/mob/spiderspawn = new spawn_type(src.loc)
 			spiderspawn.color = color
 			spiderspawn.set_light(light_range, light_power, light_color)
 			qdel(src)
+	else if(isorgan(loc))
+		if(!amount_grown) amount_grown = 1
+		var/obj/item/organ/external/O = loc
+		if(!O.owner || O.owner.stat == DEAD || amount_grown > 80)
+			O.implants -= src
+			src.loc = O.owner ? O.owner.loc : O.loc
+			src.visible_message("<span class='warning'>\A [src] makes its way out of [O.owner ? "[O.owner]'s [O.name]" : "\the [O]"]!</span>")
+			if(O.owner)
+				O.owner.apply_damage(1, BRUTE, O.limb_name)
+		else if(prob(1))
+			O.owner.apply_damage(1, TOX, O.limb_name)
+			if(world.time > last_itch + 30 SECONDS)
+				last_itch = world.time
+				O.owner << "<span class='notice'>Your [O.name] itches...</span>"
+	else if(prob(1))
+		src.visible_message("<span class='notice'>\The [src] skitters.</span>")
+
+	if(amount_grown)
+		amount_grown += rand(0,2)
 
 /obj/effect/decal/cleanable/spiderling_remains
 	name = "spiderling remains"
@@ -214,7 +240,7 @@
 		icon_state = pick("cocoon1","cocoon2","cocoon3")
 
 /obj/effect/spider/cocoon/Destroy()
-	src.visible_message("\red \the [src] splits open.")
+	src.visible_message("<span class='warning'>\The [src] splits open.</span>")
 	for(var/atom/movable/A in contents)
 		A.loc = src.loc
 	return ..()
diff --git a/code/modules/mob/living/simple_animal/hostile/giant_spider.dm b/code/modules/mob/living/simple_animal/hostile/giant_spider.dm
index 4d7a8f7e3a..40247c7584 100644
--- a/code/modules/mob/living/simple_animal/hostile/giant_spider.dm
+++ b/code/modules/mob/living/simple_animal/hostile/giant_spider.dm
@@ -64,15 +64,24 @@
 	move_to_delay = 4
 
 /mob/living/simple_animal/hostile/giant_spider/AttackingTarget()
-	..()
-	if(isliving(target_mob))
-		var/mob/living/L = target_mob
+	var/target = ..()
+	if(isliving(target))
+		var/mob/living/L = target
 		if(L.reagents)
 			L.reagents.add_reagent("toxin", poison_per_bite)
 			if(prob(poison_per_bite))
 				L << "\red You feel a tiny prick."
 				L.reagents.add_reagent(poison_type, 5)
 
+/mob/living/simple_animal/hostile/giant_spider/nurse/AttackingTarget()
+	var/target = ..()
+	if(ishuman(target))
+		var/mob/living/carbon/human/H = target
+		if(prob(poison_per_bite))
+			var/obj/item/organ/external/O = pick(H.organs)
+			if(!(O.status & ORGAN_ROBOT))
+				O.implants += new/obj/effect/spider/eggcluster(O)
+
 /mob/living/simple_animal/hostile/giant_spider/Life()
 	..()
 	if(!stat)