This study investigated why more males than females complain of dissatisfaction with their anatomical sex (gender dysphoria). New referrals to a university gender identity clinic were dichotomously classified as heterosexual or homosexual. There were 73 heterosexual and 52 homosexual males; 1 heterosexual and 71 homosexual females. The average heterosexual male was 8 years older at inception than the homosexual groups. The heterosexual males reported that their first cross-gender wishes occurred around the time they first cross-dressed, whereas the homosexual groups reported that cross-gender wishes preceded cross-dressing by 3-4 years. Some history of fetishistic arousal was acknowledged by over 80% of the heterosexual males, compared to fewer than 10% of homosexual males and no homosexual females. The results suggest that males are not differentially susceptible to gender dysphoria per se, but rather that they are differentially susceptible to one of the predisposing conditions, namely, fetishistic transvestism.

A revision of the typology of male cross-gender identity was carried out by means of formalized, easily replicable methods. The results suggest (1) that there are two discrete types of cross-gender identity, one heterosexual, the other homosexual; (2) that transvestism, and closely related conditions of cross-gender identity, occur exclusively or almost exclusively in heterosexuals; (3) that of the two types of transsexualism distinguished in this study, type A is, in heterosexuals, very rare or completely nonexistent; (4) that (in the course of time) transvestites or borderline transsexuals (defined below) may develop sustained cross-gender identity, as observed by Stoller (1971); (5) that although, according to Hoenig and Kenna (1974), transsexualism by itself is not an anomalous erotic preference, it is (virtually) always either preceded by transvestism or accompanied by homosexuality or cross-gender fetishism.

This study investigated whether heterosexual males are more likely to regret sex reassignment surgery than homosexual males or females. Subjects were 111 postoperative transsexuals who had been surgically reassigned for at least one year, representing a follow-up rate of 84.1%. Subjects' feelings about surgery were assessed with self-administered questionnaires. None of the 61 homosexual females or 36 homosexual males consciously regretted surgery, compared to 4 of the 14 heterosexual males: a significant difference. This finding suggests that heterosexual applicants for sex reassignment should be evaluated with particular caution, although a heterosexual preference is not an absolute contraindication for surgery.

Our earlier Femine Gender Identity Scale for males appear to measure a strong single factor which was reliable and displayed substantial discriminant validity. However, the number of items was small and there was substantial overlap between items with respect to their meaning. In an attempt to overcome these limitations, in the present study the scale was extended and validated. Each item of the new scale differentiated among the groups in an experimental sample and, subsequently, in a cross-validation sample. A secondary finding was the significantly higher femine gender identity scores of homosexual patients over homosexual nonpatients.

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