Some aspects of Anna Freud’s life reveal the existence of specifically adolescent conflicts, which can be tied to some of her theoretical and clinical discoveries in the field of adolescent psychoanalysis. Her historical input in the gradual construction of a theoretical corpus on adolescence has often been ignored. These links between biography and theory gave rise to a movement of conceptualisation, making it possible to develop a psychoanalytic metapsychology of adolescence: indeed, emerged such notions as asceticism, intellectualisation in relationship with anorexia and the struggle against the genitalisation of the adolescent body. Today, the Annafreudian school of thought has remained the main source of investigation and theoretical transmission of what is now called the adolescent process.