This is a clinical reflection about the formation of a personality at risk for psycho-somatization in adolescence. The reappearance of childhood soma at puberty is indicative of early distortions in the mother-baby relation and of the failure of the early Oedipal phase, which fosters somatization and the allergic object-relation in the transference. The genital body then becomes the sick body.
The psychotherapy carried out in the post-puberty period enables these to be articulated with the history of the subject and with the adolescent process which is under way.

Key-words
Puberty, Genital body, Sick body, Attachment pathology, Diffuse anxiety, Representation void, Allergic object relation.