diff --git a/code/_onclick/hud/screen_objects.dm b/code/_onclick/hud/screen_objects.dm
index d93953daaf1..0ef30cbe4ae 100644
--- a/code/_onclick/hud/screen_objects.dm
+++ b/code/_onclick/hud/screen_objects.dm
@@ -436,6 +436,7 @@
 /obj/screen/inventory/hand
 	var/image/active_overlay
 	var/image/handcuff_overlay
+	var/static/mutable_appearance/blocked_overlay = mutable_appearance('icons/mob/screen_gen.dmi', "blocked")
 
 /obj/screen/inventory/hand/update_overlays()
 	. = ..()
@@ -451,6 +452,10 @@
 			if(C.handcuffed)
 				. += handcuff_overlay
 
+			var/obj/item/organ/external/hand = C.get_organ("[slot_id == slot_l_hand ? "l" : "r"]_hand")
+			if(!hand || !hand.is_usable())
+				. += blocked_overlay
+
 		if(slot_id == slot_l_hand && hud.mymob.hand)
 			. += active_overlay
 		else if(slot_id == slot_r_hand && !hud.mymob.hand)
diff --git a/code/modules/mob/living/carbon/carbon.dm b/code/modules/mob/living/carbon/carbon.dm
index 02cdbf43b15..20b0d812f57 100644
--- a/code/modules/mob/living/carbon/carbon.dm
+++ b/code/modules/mob/living/carbon/carbon.dm
@@ -194,12 +194,7 @@
 				to_chat(usr, "<span class='warning'>Your other hand is too busy holding the [item_in_hand.name]</span>")
 				return
 	hand = !hand
-	if(hud_used && hud_used.inv_slots[slot_l_hand] && hud_used.inv_slots[slot_r_hand])
-		var/obj/screen/inventory/hand/H
-		H = hud_used.inv_slots[slot_l_hand]
-		H.update_icon()
-		H = hud_used.inv_slots[slot_r_hand]
-		H.update_icon()
+	update_hands_hud()
 	SEND_SIGNAL(src, COMSIG_CARBON_SWAP_HANDS)
 
 
@@ -1045,7 +1040,7 @@ GLOBAL_LIST_INIT(ventcrawl_machinery, list(/obj/machinery/atmospherics/unary/ven
 		changeNext_move(CLICK_CD_RAPID) //reset click cooldown from handcuffs
 	update_action_buttons_icon() //some of our action buttons might be unusable when we're handcuffed.
 	update_inv_handcuffed()
-	update_hud_handcuffed()
+	update_hands_hud()
 
 /mob/living/carbon/get_standard_pixel_y_offset()
 	if(IS_HORIZONTAL(src))
diff --git a/code/modules/mob/living/carbon/carbon_update_icons.dm b/code/modules/mob/living/carbon/carbon_update_icons.dm
index 2b9bbee950d..d4292464953 100644
--- a/code/modules/mob/living/carbon/carbon_update_icons.dm
+++ b/code/modules/mob/living/carbon/carbon_update_icons.dm
@@ -32,13 +32,13 @@
 	return
 
 //update whether handcuffs appears on our hud.
-/mob/living/carbon/proc/update_hud_handcuffed()
-	if(hud_used)
-		var/obj/screen/inventory/R = hud_used.inv_slots[slot_r_hand]
-		var/obj/screen/inventory/L = hud_used.inv_slots[slot_l_hand]
-		if(R && L)
-			R.update_icon()
-			L.update_icon()
+/mob/living/carbon/proc/update_hands_hud()
+	if(!hud_used)
+		return
+	var/obj/screen/inventory/R = hud_used.inv_slots[slot_r_hand]
+	R?.update_icon()
+	var/obj/screen/inventory/L = hud_used.inv_slots[slot_l_hand]
+	L?.update_icon()
 
 /mob/living/carbon/update_inv_r_hand(ignore_cuffs)
 	if(handcuffed && !ignore_cuffs)
diff --git a/code/modules/surgery/organs/subtypes/standard_organs.dm b/code/modules/surgery/organs/subtypes/standard_organs.dm
index ad496d9ca2b..9c219794f0e 100644
--- a/code/modules/surgery/organs/subtypes/standard_organs.dm
+++ b/code/modules/surgery/organs/subtypes/standard_organs.dm
@@ -177,6 +177,7 @@
 
 /obj/item/organ/external/hand/remove()
 	if(owner)
+		update_hand_missing()
 		if(owner.gloves)
 			owner.unEquip(owner.gloves)
 		if(owner.l_hand)
@@ -186,6 +187,26 @@
 
 	. = ..()
 
+/obj/item/organ/external/hand/necrotize(update_sprite)
+	. = ..()
+	update_hand_missing()
+
+/obj/item/organ/external/hand/mutate()
+	. = ..()
+	update_hand_missing()
+
+/obj/item/organ/external/hand/receive_damage(brute, burn, sharp, used_weapon, list/forbidden_limbs, ignore_resists, updating_health)
+	. = ..()
+	update_hand_missing()
+
+/obj/item/organ/external/hand/droplimb(clean, disintegrate, ignore_children, nodamage)
+	. = ..()
+	update_hand_missing()
+
+/obj/item/organ/external/hand/proc/update_hand_missing()
+	// we need to come back to this once the hand is actually removed/dead
+	addtimer(CALLBACK(owner, TYPE_PROC_REF(/mob/living/carbon/human, update_hands_hud), 0))
+
 /obj/item/organ/external/hand/right
 	limb_name = "r_hand"
 	name = "right hand"