diff --git a/code/__DEFINES/wounds.dm b/code/__DEFINES/wounds.dm
index eb59c337e7..a5f0aff489 100644
--- a/code/__DEFINES/wounds.dm
+++ b/code/__DEFINES/wounds.dm
@@ -126,6 +126,8 @@ GLOBAL_LIST_INIT(global_all_wound_types, list(/datum/wound/blunt/critical, /datu
 #define ACCEPTS_GAUZE (1<<4)
 /// If this wound marks the limb as being allowed to have splints applied
 #define ACCEPTS_SPLINT (1<<5)
+/// PENTEST ADDITION: If this wound requires humanoids to NOT have the NOBLOOD species trait
+#define BLEED_WOUND (1<<6)
 
 /// When a wound is staining the gauze with blood
 #define GAUZE_STAIN_BLOOD 1
diff --git a/code/datums/wounds/_wounds.dm b/code/datums/wounds/_wounds.dm
index 9a3f37015c..78c6ffd731 100644
--- a/code/datums/wounds/_wounds.dm
+++ b/code/datums/wounds/_wounds.dm
@@ -115,7 +115,7 @@
 
 	if(ishuman(L.owner))
 		var/mob/living/carbon/human/H = L.owner
-		if(((wound_flags & BONE_WOUND) && !(HAS_BONE in H.dna.species.species_traits)) || ((wound_flags & FLESH_WOUND) && !(HAS_FLESH in H.dna.species.species_traits)))
+		if(((wound_flags & BONE_WOUND) && !(HAS_BONE in H.dna.species.species_traits)) || ((wound_flags & FLESH_WOUND) && !(HAS_FLESH in H.dna.species.species_traits)) || ((wound_flags & BLEED_WOUND) && (NOBLOOD in H.dna.species.species_traits))) // PENTEST ADDITION: add check for BLEED_WOUND flag
 			qdel(src)
 			return
 
diff --git a/code/datums/wounds/pierce.dm b/code/datums/wounds/pierce.dm
index cc607e3a6c..437e50fe03 100644
--- a/code/datums/wounds/pierce.dm
+++ b/code/datums/wounds/pierce.dm
@@ -10,7 +10,7 @@
 	treatable_by = list(/obj/item/stack/medical/suture)
 	treatable_tool = TOOL_CAUTERY
 	base_treat_time = 3 SECONDS
-	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE | ACCEPTS_SPLINT)
+	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE | ACCEPTS_SPLINT | BLEED_WOUND) // PENTEST ADDITION: BLEED_WOUND flag
 
 	/// How much blood we start losing when this wound is first applied
 	var/initial_flow
@@ -212,4 +212,4 @@
 	threshold_minimum = 115
 	threshold_penalty = 50
 	status_effect_type = /datum/status_effect/wound/pierce/critical
-	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE | ACCEPTS_SPLINT | MANGLES_FLESH)
+	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE | ACCEPTS_SPLINT | MANGLES_FLESH | BLEED_WOUND) // PENTEST ADDITION: BLEED_WOUND flag
diff --git a/code/datums/wounds/slash.dm b/code/datums/wounds/slash.dm
index 7648ff0788..e8a11351b1 100644
--- a/code/datums/wounds/slash.dm
+++ b/code/datums/wounds/slash.dm
@@ -11,7 +11,7 @@
 	treatable_by_grabbed = list(/obj/item/gun/energy/laser)
 	treatable_tool = TOOL_CAUTERY
 	base_treat_time = 3 SECONDS
-	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE)
+	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE | BLEED_WOUND) // PENTEST ADDITION: BLEED_WOUND flag
 
 	/// How much blood we start losing when this wound is first applied
 	var/initial_flow
@@ -268,4 +268,4 @@
 	threshold_penalty = 50
 	demotes_to = /datum/wound/slash/severe
 	status_effect_type = /datum/status_effect/wound/slash/critical
-	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE | MANGLES_FLESH)
+	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE | MANGLES_FLESH | BLEED_WOUND) // PENTEST ADDITION: BLEED_WOUND flag