In this condition the ejaculate consists of small quantity spermatozoa (under 50.000.000 /ml). The reasons could be hormonal insufficiency, leading to disturbance of spermatogenesis, starvation, avitaminosis, alcohol in take and smoking, chronic plumb, mercury, and their derivative intoxication, carbon dioxide, x-ray radiation, chronic inflammatory diseases (Chlamydia, Mycoplasma and others). The reasons also can be psychic and physical loading, stress, conflicts, frequent ejaculations. The injured mobility of spermatozoa is reduced quantity of movable forms, as well as the speed of movement of spermatozoa in ejaculate. The quantity of slow mobile and immobile forms is over 30%.