A varicocele is a dilatation of the pampiniform venous plexus and the internal spermatic vein. Varicocele is a well-recognized cause of decreased testicular function and occurs in approximately 15%-20% of all males and in 40% of infertile males. How a varicocele impairs sperm structure, function, and production is unknown, but researchers believe it interferes with testicular thermoregulation.
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Cite this: Bradley Schwartz. Fast Five Quiz: Test Your Knowledge of Varicoceles - Medscape - Mar 06, 2018.