A vasectomy is a minor surgical procedure carried out to make a man sterile (he is no longer able to father a child). It is a commonly used form of contraception.
A tiny incision (cut) is made in the scrotum and a short length of the vas deferens (the tube carrying sperm away from the testicles where it is produced) is removed and the cut ends sealed.
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This page was last updated at 11:46AM on August 26, 2019.