How do they do a vasectomy?

A vasectomy is done in a doctor’s office or clinic. The doctor numbs the area and then makes a small cut in the scrotum (skin around the testicles) to get to the tubes that carry the sperm (sperm ducts). The doctor then closes off the sperm ducts so that sperm cannot get into the semen (what comes out during an orgasm). When there are no sperm in the semen, you cannot cause a pregnancy.

Illustration showing the location of the sperm duct (tube), seminal vesicle (where sperm is stored), the closed off tube of a vasectomy, the testicle, and the scrotum.