[Impotence and male sterility].

The causes of sexual impotence, including disturbances of ejaculation, and the methods of treatment are described. In the vast majority of cases male sterility results from a disorder of spermatogenesis. The main factors responsible for infertile semen are discussed: in most cases the causes are unknown. It is to be hoped that progress in research into human reproduction and recent diagnostic advances will provide the groundwork for more successful therapy of male sterility.