Thirty-three patients with congenital penile deviation were examined by a semi-structured interview and psychodiagnostic tests (Giessen test, Giessen complaint sheet) prior to undergoing surgery according to the Nesbit-Kelâmi technique. A prognosis was then made to determine the extent to which the problems and disturbances reported by the patient or uncovered by the examiner could be improved by the operation. This prognostic assessment was then verified in a subsequent catamnestic examination (N = 20), at an average of 21.3 months after the intervention. An attempt is made to identify and define preoperative indicators that permit to predict the postoperative course.