Pao (1969) differentiated between delicate (low lethality) and coarse (high lethality) self-mutilators who cut. The “delicate” cutters were young, multiple episodic of superficial cuts and generally had diagnosis. The “coarse” cutters were older and generally psychotic. Ross and McKay (1979) categorized self-mutilators into 9 groups: Cutting , biting , abrading , severing , inserting , burning , ingesting or inhaling and hitting and constricting .
