[Male sexual insufficiency].

There are patients who complaint the loss of sexual desire, loss of erection, absence of emission, absence of orgasm, and premature ejaculation. When the primary disturbance is in the producing or releasing process of testosterone in the testis, it increases the gonadotropic stimulation and results in the hypergonadotropic hypogonadism. Hypogonadotropic hypogonadism, in contrast, suggests that the disturbance in the hypophysis or hypothalamus. Patients who have the primary disturbance in the hypothalamus sometimes do not respond to LHRH, but repeated pulsatile LHRH stimulation induces the response. LH-testosterone is known to be the main axis of sexual function. However, growth hormone (GH) also has an important role. GH is necessary for adults, not only for children. Its deficiency arises easy fatiguability, loss of sexual desire, loss of erection, and oligo- or azoospermia. Erectile dysfunction is frequently caused by vascular, neurological and psychosomatic disorders. A variety of drugs are known to cause male sexual insufficiency. Many environmental factors and stress may affect the release of LH and GH, and therefore disturb the male sexual function.