diff --git a/code/__DEFINES/genetics.dm b/code/__DEFINES/genetics.dm
index 20f32f85a37..35c714e1004 100644
--- a/code/__DEFINES/genetics.dm
+++ b/code/__DEFINES/genetics.dm
@@ -8,6 +8,7 @@
 #define EPILEPSY	"Epilepsy"
 #define MUTATE		"Unstable DNA"
 #define COUGH		"Cough"
+#define DWARFISM	"Dwarfism"
 #define CLOWNMUT	"Clumsiness"
 #define TOURETTES	"Tourettes Syndrome"
 #define DEAFMUT		"Deafness"
diff --git a/code/datums/mutations.dm b/code/datums/mutations.dm
index 64ff70e3eef..76a0b3e2dc8 100644
--- a/code/datums/mutations.dm
+++ b/code/datums/mutations.dm
@@ -277,6 +277,23 @@
 		owner.drop_item()
 		owner.emote("cough")
 
+/datum/mutation/human/dwarfism
+
+	name = "Dwarfism"
+	quality = MINOR_NEGATIVE
+	text_gain_indication = "<span class='notice'>Everything around you seems to grow..</span>"
+	text_lose_indication = "<span class='notice'>Everything around you seems to shrink..</span>"
+
+/datum/mutation/human/dwarfism/on_acquiring(mob/living/carbon/human/owner)
+	if(..())	return
+	owner.resize = 0.8
+	owner.visible_message("<span class='danger'>[owner] suddenly shrinks!</span>")
+
+/datum/mutation/human/dwarfism/on_losing(mob/living/carbon/human/owner)
+	if(..())	return
+	owner.resize = 1.2
+	owner.visible_message("<span class='danger'>[owner] suddenly grows!</span>")
+
 /datum/mutation/human/clumsy
 
 	name = "Clumsiness"
diff --git a/code/game/objects/items/weapons/dna_injector.dm b/code/game/objects/items/weapons/dna_injector.dm
index 28afa0a7bb8..660a7dd078a 100644
--- a/code/game/objects/items/weapons/dna_injector.dm
+++ b/code/game/objects/items/weapons/dna_injector.dm
@@ -139,6 +139,20 @@
 		..()
 		add_mutations.Add(mutations_list[COUGH])
 
+/obj/item/weapon/dnainjector/antidwarf
+	name = "\improper DNA injector (Anti-Dwarfism)"
+	desc = "Helps you grow big and strong."
+	New()
+		..()
+		remove_mutations.Add(mutations_list[DWARFISM])
+
+/obj/item/weapon/dnainjector/dwarf
+	name = "\improper DNA injector (Dwarfism)"
+	desc = "Its a small world after all."
+	New()
+		..()
+		add_mutations.Add(mutations_list[DWARFISM])
+
 /obj/item/weapon/dnainjector/clumsymut
 	name = "\improper DNA injector (Clumsy)"
 	desc = "Makes clown minions."