[Definition and classification of sexual disorder--in men]

Sexual disorders include the disorder of sexual differntiation and male infertility and sexual dysfunction. Sex determination is concerned with the control of the development of the primary and or gonadal sex, sex differentiation encompasses the events subsequent to gonadal organogenesis. Classification of anomalous sexual development are recognized as disorders of gonadal differentiation, female pseudhermaphroditism, male pseudhermaphroditism and unclassified form. Upon completion of a history and physical examination and evaluation of semen parameters, the male infertility can usually classified into one of nine categories: azoospermia, ejaculatory dysfunction, varicocele, gonadotoxins, antisperm antibodies, infections, endocrinopathy, idiopathic infertility, or miscellaneous. Erectile dysfunction (ED) is classified into two categories: functional ED and organic ED. Vascular, neurological and endocrinological disorders are recognized as organic causes of ED.