“…Why, then, do some of these patients change gender and others do not? Many urological investigators appear to believe that the welldocumented neonatal testosterone surge in normal 46,XY males from about the second week of life after a fullterm birth through about the fifth or sixth month of age plays a role in the development of male gender identity and, therefore, emphasize the importance of early orchidectomy to prevent androgen "imprinting" of the brain in female-assigned patients (e.g., Ciftci, Ş enocak, & Büyükpamukçu, 1995;Johnston, Yeatman, & Weigel, 1977;Oesch, Pinter, & Ransley, 1987;Stolar et al, 1987). In the published data reviewed here, the timing of orchidectomy was highly variable.…”