What does vasectomy mean?
A vasectomy is a surgical form of male contraception in which a segment of the vas deferens, the tube carrying sperm from the testes, is cut or removed. The operation prevents sperm from entering the ejaculatory ducts while generally preserving testosterone production, sexual desire, and erectile function. In ordinary usage, “vasectomy” usually refers to the procedure itself, and people may say they “have a vasectomy” when they undergo it. Although it is intended to be permanent, some vasectomies can be reversed, and success is not guaranteed. The decision is commonly discussed with a doctor in terms of effectiveness, possible complications, reversibility, and alternatives. Vasectomy is different from castration: it does not remove the testes and does not ordinarily reduce male sex hormones. The word is also used more broadly in public-health and medical discussions about contraception, reproductive rights, and family planning.
nounA surgical operation in which a portion of the vas deferens is removed or cut to prevent sperm from passing through it, used as a method of male contraception. It is a form of male sterilization and generally does not affect testosterone production or sexual function.
- A surgical operation involving removal or cutting of a segment of the vas deferens to prevent the passage of sperm, used for male contraception.
"After discussing the procedure and its potential reversibility with his doctor, he decided to have a vasectomy."
"The urologist explained the risks and alternatives before performing the vasectomy."
"Although a vasectomy is intended as permanent contraception, some procedures can be reversed, though fertility does not always return."
The regular plural is used when referring to multiple procedures, patients, or operations.
"The surgeon has performed more than two thousand vasectomies."
A vasectomy leaves the testes in place and interrupts sperm transport instead; it is contraception, not castration.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does vasectomy come from?
Vasectomy was formed in the late nineteenth century from the Latin vas, meaning a vessel or channel, and the combining form -ectomy, derived from Greek ektomē, meaning excision or cutting out. The name literally describes the removal of a portion of the vas deferens. English words such as vasal and vascular share the Latin root, while vasovasostomy is a later surgical term built on the same vas element.
Related word forms
How vasectomy is actually used
The term is most often used in medical and informational contexts. It is distinct from castration, which involves removal or damage to the testes, and from temporary contraceptive methods such as condoms or the hormonal pill.
Easily confused with vasectomy
A vasectomy is a male sterilization procedure involving the vas deferens, whereas a hysterectomy is the surgical removal of the uterus.