A vasectomy (pronounced va-SEK-tuh-mee) is a surgical procedure performed as a method of birth control in men. It involves cutting the tubes (the vas deferens, pronounced VAS DEF-uh-renz) that carry sperm from the testicles.

Only about 15 of every 10,000 couples get pregnant in the year after the man has a vasectomy.1

As part of a program of research on the safety and effectiveness of male contraceptives, the NICHD supports studies and other activities advancing understanding of vasectomy.

Common Name

  • Vasectomy

Medical or Scientific Name

  • Vasectomy


  1. American Pregnancy Association. (2003). Overview: Birth control. Retrieved May 23, 2012, from External Web Site Policy.
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