A) : If no sperm abnormal sperm, azoospermia, a reduction in activity, morphologic abnormality. Idiopathic azoospermia or weak man, the husband of less than 20 million sperm / ml, live less than 50% precision. teratozoosperma more than 50%. Fertility treatment technology was needed to help such patients. Azoospermia or dead sperm can not use their own sperm fertility, sperm must rely on others. Common factors have caused more diseases

* Congenital dysplasia : If bilateral cryptorchidism, testicular dysgenesis syndrome congenital

* Systemic factors : chronic malnutrition, smoking, alcohol, psychological stress, Xingshenghuoguopin

* Local : with the mumps orchitis, testicular tuberculosis, Varicocele.

B) prevent testicular and epididymal sperm delivery : tuberculosis, impotence, premature ejaculation

C) : Immune factors sperm from semen in the body can produce antibodies against their own sperm and cause of male infertility. The firing occurred sperm agglutination not penetrate their cervical mucus.

This article was posted on 2007-02-27