Do Varicoceles Cause Infertility? How Swollen Veins Affect Sperm Production
A varicocele is an enlargement of the veins within the scrotum, caused by valves that no longer prevent blood from pooling. The mechanism is comparable to varicose veins in the leg. It is present in approximately 15 percent of men generally and in a considerably higher proportion of those evaluated for infertility. It is also
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