A varicocele develops when the valve that regulates bloodflow from the vein into the main circulatory system becomes damaged or defective. Inefficient blood flow causes enlargement (dilation) of the vein.
Physician-developed and -monitored.
Original Date of Publication: 10 Jun 1998
Reviewed by: David M. Kaufman, M.D., Stanley J. Swierzewski, III, M.D.
Last Reviewed: 20 Jul 2007
Varicocele, Varicocele Causes reprinted with permission from urologychannel.com
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