HAS_BLOOD_DNA doesn't include the if check

code/modules/clothing/gloves/_gloves.dm

@@ -29,7 +29,7 @@
 	if(!isinhands)
 		if(damaged_clothes)
 			. += mutable_appearance('icons/effects/item_damage.dmi', "damagedgloves")
-		IF_HAS_BLOOD_DNA(src)
+		if(HAS_BLOOD_DNA(src))
 			. += mutable_appearance('icons/effects/blood.dmi', "bloodyhands")
 
 /obj/item/clothing/gloves/update_clothes_damaged_state(damaging = TRUE)

code/modules/clothing/head/_head.dm

@@ -20,11 +20,11 @@
 	if(!isinhands)
 		if(damaged_clothes)
 			. += mutable_appearance('icons/effects/item_damage.dmi', "damagedhelmet")
-		IF_HAS_BLOOD_DNA(src)
+		if(HAS_BLOOD_DNA(src))
 			. += mutable_appearance('icons/effects/blood.dmi', "helmetblood")
 
 /obj/item/clothing/head/update_clothes_damaged_state(damaging = TRUE)
 	..()
 	if(ismob(loc))
 		var/mob/M = loc
-		M.update_inv_head()
+		M.update_inv_head()

code/modules/clothing/masks/_masks.dm

@@ -20,7 +20,7 @@
 		if(body_parts_covered & HEAD)
 			if(damaged_clothes)
 				. += mutable_appearance('icons/effects/item_damage.dmi', "damagedmask")
-			IF_HAS_BLOOD_DNA(src)
+			if(HAS_BLOOD_DNA(src))
 				. += mutable_appearance('icons/effects/blood.dmi', "maskblood")
 
 /obj/item/clothing/mask/update_clothes_damaged_state(damaging = TRUE)

code/modules/clothing/neck/_neck.dm

@@ -12,7 +12,7 @@
 		if(body_parts_covered & HEAD)
 			if(damaged_clothes)
 				. += mutable_appearance('icons/effects/item_damage.dmi', "damagedmask")
-			IF_HAS_BLOOD_DNA(src)
+			if(HAS_BLOOD_DNA(src))
 				. += mutable_appearance('icons/effects/blood.dmi', "maskblood")
 
 /obj/item/clothing/neck/tie

code/modules/clothing/shoes/_shoes.dm

@@ -43,7 +43,7 @@
 	. = list()
 	if(!isinhands)
 		var/bloody = FALSE
-		IF_HAS_BLOOD_DNA(src)
+		if(HAS_BLOOD_DNA(src))
 			bloody = TRUE
 		else
 			bloody = bloody_shoes[BLOOD_STATE_HUMAN]
@@ -87,4 +87,4 @@
 		M.update_inv_shoes()
 
 /obj/item/proc/negates_gravity()
-	return FALSE
+	return FALSE

code/modules/clothing/suits/_suits.dm

@@ -15,7 +15,7 @@
 	if(!isinhands)
 		if(damaged_clothes)
 			. += mutable_appearance('icons/effects/item_damage.dmi', "damaged[blood_overlay_type]")
-		IF_HAS_BLOOD_DNA(src)
+		if(HAS_BLOOD_DNA(src))
 			. += mutable_appearance('icons/effects/blood.dmi', "[blood_overlay_type]blood")
 		var/mob/living/carbon/human/M = loc
 		if(ishuman(M) && M.w_uniform)

code/modules/clothing/under/_under.dm

@@ -23,7 +23,7 @@
 	if(!isinhands)
 		if(damaged_clothes)
 			. += mutable_appearance('icons/effects/item_damage.dmi', "damageduniform")
-		IF_HAS_BLOOD_DNA(src)
+		if(HAS_BLOOD_DNA(src))
 			. += mutable_appearance('icons/effects/blood.dmi', "uniformblood")
 		if(accessory_overlay)
 			. += accessory_overlay

code/modules/mob/living/carbon/human/life.dm

@@ -333,29 +333,24 @@
 
 	//If you're covered in blood, you'll start smelling like shit faster.
 	var/obj/item/head = get_item_by_slot(SLOT_HEAD)
-	if(head)
-		IF_HAS_BLOOD_DNA(head)
-			hygiene_loss -= 1 * HYGIENE_FACTOR
+	if(head && HAS_BLOOD_DNA(head))
+		hygiene_loss -= 1 * HYGIENE_FACTOR
 
 	var/obj/item/mask = get_item_by_slot(SLOT_HEAD)
-	if(mask)
-		IF_HAS_BLOOD_DNA(mask)
-			hygiene_loss -= 1 * HYGIENE_FACTOR
+	if(mask && HAS_BLOOD_DNA(mask))
+		hygiene_loss -= 1 * HYGIENE_FACTOR
 
 	var/obj/item/uniform = get_item_by_slot(SLOT_W_UNIFORM)
-	if(uniform)
-		IF_HAS_BLOOD_DNA(uniform)
-			hygiene_loss -= 4 * HYGIENE_FACTOR
+	if(uniform && HAS_BLOOD_DNA(uniform))
+		hygiene_loss -= 4 * HYGIENE_FACTOR
 
 	var/obj/item/suit = get_item_by_slot(SLOT_WEAR_SUIT)
-	if(suit)
-		IF_HAS_BLOOD_DNA(suit)
-			hygiene_loss -= 3 * HYGIENE_FACTOR
+	if(suit && HAS_BLOOD_DNA(suit))
+		hygiene_loss -= 3 * HYGIENE_FACTOR
 
 	var/obj/item/feet = get_item_by_slot(SLOT_SHOES)
-	if(feet)
-		IF_HAS_BLOOD_DNA(feet)
-			hygiene_loss -= 0.5 * HYGIENE_FACTOR
+	if(feet && HAS_BLOOD_DNA(feet))
+		hygiene_loss -= 0.5 * HYGIENE_FACTOR
 
 	adjust_hygiene(hygiene_loss)