Self mutilation and suicide mean both an aggressive assault on the sel
f, but each directed against a different self: In the case of suicidal
ity it is merged with the malignant or bad object (object representati
on). The aggression is aimed at an insufficient object which is locate
d in the self. The dynamics of self-mutilation is based on a dissociat
ion of the self rather than on mechanisms of introjection and symbioti
c merging. In this dissociation parts of the self, especially the body
-self, are separated and experienced and manipulated as an external ob
ject. Because the aggression is directed against a dissociated part of
the self, the self as a whole can be preserved. While self mutilating
patients are retreating themselves autistically together with their b
ody-self, suicidal patients are much more attached to the object, iden
tified with the introject respectively fixated upon his projective sub
stitute, the external object.