Gender identity disorder is a sexual disorder characterized by strong identification with the opposite gender, followed by unpleasant feeling dueto the birth given gender. Longstanding clinical experience with transgender population has brought new knowledge and better understanding of gender identity and gender identity disorders. Initial knowledge referred to sexual orientation of gender dysphoric persons such as homosexual, heterosexual, bisexual and asexual.The contemporary literature dealing with transgenderism and transsexualism brings out the concept of autogynephilia (from Greek "love oneself as a woman") which is the subject of numerous controversies among the experts in this field as well as in the transgender community. The concept of autogynephilia gained importance in Blanchard's work and his attempts to improve diagnostic categories of gender identity disorders and implement efficient strategies in the management of adult male patients. The main topic of this paper refers to the evolution of the autogynephilia concept, which most prominent authors within the field elaborate as a type of male paraphillic tendency of a person to be sexually by the idea of a phantasy or an image of oneself as a woman, naming these persons "nonhomosexual transsexuals" or "autogynephilic transsexuals".