Semen (human)

Human semen is the "seed" of mankind, the mix of body fluids amd male gametes (spermatazoons), that, when deposited in the female reproductive tract by ejaculation, can result in fertilization.

Fertility in men

Male fertility is intimately related to the quality and quantity of sperm cells in semen. Presently, when men are evaluated for infertility semen samples are routinely collected and examined.

Varicocele

Varicocele is a condition of an enlarged and excessively twisting course of the veins within the spermatic cord (pampiniform plexus). Although some men with this condition are fertile, varicocele is a cause of infertility in many men.