diff --git a/code/modules/surgery/ear_surgery.dm b/code/modules/surgery/ear_surgery.dm
index 416857bafb25..fb5346c49ee9 100644
--- a/code/modules/surgery/ear_surgery.dm
+++ b/code/modules/surgery/ear_surgery.dm
@@ -24,9 +24,9 @@
 
 /datum/surgery/ear_surgery/can_start(mob/user, mob/living/carbon/target)
 	var/obj/item/organ/internal/ears/target_ears = target.get_organ_slot(ORGAN_SLOT_EARS)
-	if(!target_ears)
-		return FALSE
-	return TRUE
+	if(target_ears?.damage > 0) // monkestation edit: ear surgery is repeatable so no worries about wasting the surgery
+		return TRUE
+	return FALSE
 
 /datum/surgery_step/fix_ears/preop(mob/user, mob/living/carbon/target, target_zone, obj/item/tool, datum/surgery/surgery)
 	display_results(
diff --git a/code/modules/surgery/eye_surgery.dm b/code/modules/surgery/eye_surgery.dm
index 7b6d7844ee6c..6523832bc392 100644
--- a/code/modules/surgery/eye_surgery.dm
+++ b/code/modules/surgery/eye_surgery.dm
@@ -22,10 +22,9 @@
 
 /datum/surgery/eye_surgery/can_start(mob/user, mob/living/carbon/target)
 	var/obj/item/organ/internal/eyes/target_eyes = target.get_organ_slot(ORGAN_SLOT_EYES)
-	if(!target_eyes)
-		to_chat(user, span_warning("It's hard to do surgery on someone's eyes when [target.p_they()] [target.p_do()]n't have any."))
-		return FALSE
-	return TRUE
+	if(target_eyes?.damage > 0) // monkestation edit: eye surgery is repeatable so only give the option if damaged.
+		return TRUE
+	return FALSE
 
 /datum/surgery_step/fix_eyes/preop(mob/user, mob/living/carbon/target, target_zone, obj/item/tool, datum/surgery/surgery)
 	display_results(
diff --git a/code/modules/surgery/lobectomy.dm b/code/modules/surgery/lobectomy.dm
index 56e256534f7f..f6faf6dec651 100644
--- a/code/modules/surgery/lobectomy.dm
+++ b/code/modules/surgery/lobectomy.dm
@@ -72,3 +72,4 @@
 		human_target.losebreath += 4
 		human_target.adjustOrganLoss(ORGAN_SLOT_LUNGS, 10)
 	return FALSE
+
diff --git a/monkestation/code/modules/surgery/coronary_bypass.dm b/monkestation/code/modules/surgery/coronary_bypass.dm
new file mode 100644
index 000000000000..0c554effde4b
--- /dev/null
+++ b/monkestation/code/modules/surgery/coronary_bypass.dm
@@ -0,0 +1,14 @@
+/datum/surgery/coronary_bypass/mechanic
+	name = "Prosthesis Coronary Bypass"
+	requires_bodypart_type = BODYTYPE_ROBOTIC
+	target_mobtypes = list(/mob/living/carbon/human) // Simpler mobs don't have bodypart types
+	steps = list(
+		/datum/surgery_step/mechanic_open,
+		/datum/surgery_step/open_hatch,
+		/datum/surgery_step/mechanic_unwrench,
+		/datum/surgery_step/prepare_electronics,
+		/datum/surgery_step/incise_heart,
+		/datum/surgery_step/coronary_bypass,
+		/datum/surgery_step/mechanic_wrench,
+		/datum/surgery_step/mechanic_close,
+	)
diff --git a/monkestation/code/modules/surgery/ear_surgery.dm b/monkestation/code/modules/surgery/ear_surgery.dm
new file mode 100644
index 000000000000..6a5d63c6aae3
--- /dev/null
+++ b/monkestation/code/modules/surgery/ear_surgery.dm
@@ -0,0 +1,14 @@
+/datum/surgery/ear_surgery
+	requires_bodypart_type = BODYTYPE_ORGANIC
+
+/datum/surgery/ear_surgery/mechanic
+	name = "Ear surgery"
+	requires_bodypart_type = BODYTYPE_ROBOTIC
+	target_mobtypes = list(/mob/living/carbon/human)
+	steps = list(
+		/datum/surgery_step/mechanic_open,
+		/datum/surgery_step/open_hatch,
+		/datum/surgery_step/prepare_electronics,
+		/datum/surgery_step/fix_ears,
+		/datum/surgery_step/mechanic_close,
+	)
diff --git a/monkestation/code/modules/surgery/eye_surgery.dm b/monkestation/code/modules/surgery/eye_surgery.dm
new file mode 100644
index 000000000000..b841056606d8
--- /dev/null
+++ b/monkestation/code/modules/surgery/eye_surgery.dm
@@ -0,0 +1,14 @@
+/datum/surgery/eye_surgery
+	requires_bodypart_type = BODYTYPE_ORGANIC
+
+/datum/surgery/eye_surgery/mechanic
+	name = "Eye surgery"
+	requires_bodypart_type = BODYTYPE_ROBOTIC
+	target_mobtypes = list(/mob/living/carbon/human)
+	steps = list(
+		/datum/surgery_step/mechanic_open,
+		/datum/surgery_step/open_hatch,
+		/datum/surgery_step/prepare_electronics,
+		/datum/surgery_step/fix_eyes,
+		/datum/surgery_step/mechanic_close,
+	)
diff --git a/monkestation/code/modules/surgery/gastrectomy.dm b/monkestation/code/modules/surgery/gastrectomy.dm
new file mode 100644
index 000000000000..95f511e7bfa1
--- /dev/null
+++ b/monkestation/code/modules/surgery/gastrectomy.dm
@@ -0,0 +1,15 @@
+/datum/surgery/gastrectomy/mechanic
+	name = "Prosthesis Gastrectomy"
+	requires_bodypart_type = BODYTYPE_ROBOTIC
+	target_mobtypes = list(/mob/living/carbon/human) // Simpler mobs don't have bodypart types
+	steps = list(
+		/datum/surgery_step/mechanic_open,
+		/datum/surgery_step/open_hatch,
+		/datum/surgery_step/mechanic_unwrench,
+		/datum/surgery_step/prepare_electronics,
+		/datum/surgery_step/incise,
+		/datum/surgery_step/gastrectomy,
+		/datum/surgery_step/clamp_bleeders,
+		/datum/surgery_step/mechanic_wrench,
+		/datum/surgery_step/mechanic_close,
+	)
diff --git a/monkestation/code/modules/surgery/hepatectomy.dm b/monkestation/code/modules/surgery/hepatectomy.dm
new file mode 100644
index 000000000000..15024689acf6
--- /dev/null
+++ b/monkestation/code/modules/surgery/hepatectomy.dm
@@ -0,0 +1,14 @@
+/datum/surgery/hepatectomy/mechanic
+	name = "Prosthesis Hepatectomy"
+	requires_bodypart_type = BODYTYPE_ROBOTIC
+	target_mobtypes = list(/mob/living/carbon/human) // Simpler mobs don't have bodypart types
+	steps = list(
+		/datum/surgery_step/mechanic_open,
+		/datum/surgery_step/open_hatch,
+		/datum/surgery_step/mechanic_unwrench,
+		/datum/surgery_step/prepare_electronics,
+		/datum/surgery_step/incise,
+		/datum/surgery_step/hepatectomy,
+		/datum/surgery_step/mechanic_wrench,
+		/datum/surgery_step/mechanic_close,
+	)
diff --git a/monkestation/code/modules/surgery/lobectomy.dm b/monkestation/code/modules/surgery/lobectomy.dm
new file mode 100644
index 000000000000..d3b0a6030363
--- /dev/null
+++ b/monkestation/code/modules/surgery/lobectomy.dm
@@ -0,0 +1,13 @@
+/datum/surgery/lobectomy/mechanic
+	name = "Prosthesis Lobectomy"
+	requires_bodypart_type = BODYTYPE_ROBOTIC
+	target_mobtypes = list(/mob/living/carbon/human) // Simpler mobs don't have bodypart types
+	steps = list(
+		/datum/surgery_step/mechanic_open,
+		/datum/surgery_step/open_hatch,
+		/datum/surgery_step/mechanic_unwrench,
+		/datum/surgery_step/prepare_electronics,
+		/datum/surgery_step/lobectomy,
+		/datum/surgery_step/mechanic_wrench,
+		/datum/surgery_step/mechanic_close,
+	)
diff --git a/tgstation.dme b/tgstation.dme
index 1ddf49226214..fbb70927fd8a 100644
--- a/tgstation.dme
+++ b/tgstation.dme
@@ -7914,7 +7914,13 @@
 #include "monkestation\code\modules\storytellers\storytellers\vote.dm"
 #include "monkestation\code\modules\storytellers\storytellers\warrior.dm"
 #include "monkestation\code\modules\surgery\blood_filter.dm"
+#include "monkestation\code\modules\surgery\coronary_bypass.dm"
+#include "monkestation\code\modules\surgery\ear_surgery.dm"
+#include "monkestation\code\modules\surgery\eye_surgery.dm"
+#include "monkestation\code\modules\surgery\gastrectomy.dm"
 #include "monkestation\code\modules\surgery\healing.dm"
+#include "monkestation\code\modules\surgery\hepatectomy.dm"
+#include "monkestation\code\modules\surgery\lobectomy.dm"
 #include "monkestation\code\modules\surgery\nif_debonding.dm"
 #include "monkestation\code\modules\surgery\advanced\brainwashing.dm"
 #include "monkestation\code\modules\surgery\bodyparts\arachnid_bodyparts.dm"