This rich but highly condensed paper is drawn from the experiences of the author and her colleagues at the Hampstead Clinic. Several difficulties encountered in the treatment of adolescents are emphasized. The guarded communication of adolescent patients makes it almost impossible to follow their rapidly changing dynamics. Special transference problems and crises arise from the struggle for independence, paranoid projection, idealization of the analyst, the need to exchange love objects, fear of ego regression, and anxiety caused by experiencing sexual feelings in sessions. Parents of adolescent patients frequently require help which should be provided by another therapist, preferably in a separate facility.