[Alex, an example of a successful transition to adult psychiatry].

A successful transition between child psychiatry and adult psychiatry is the result of a joint project. To ensure the continuity of the adolescent's care, the two protagonists need a common and constructive clinical interpretation, and a shared understanding of the problems, without which the transition will be difficult. The story of Alex, a young teenager cared for since early childhood, illustrates the communication methods which must be put in place.