The treatment of adolescents suffering from early traumatic experiences inescapably involves the encounter with patients' concrete use of their bodies and actions. The clinical history of an adolescent girl reveals the relationship between traumatic transgenerational abandonments and self-cutting in the transference-countertransference relationship. Initially the patient's body and actions were the only way to communicate experiences that could not be conveyed in words and represented: the “skin for two” of the original psychosomatic envelope needed to be wounded, cut, broken concretely. The establishment of a boundary between internal and external, self and other, is the result of a complex process with roots in the quality of the encounter with the object. Gradually, in the encounter with the analyst, the young patient may construct a tenuous possibility of differentiation and begin to access the first outline of a representation of loss.