A vasectomy is a surgical procedure for male sterilization that involves cutting and sealing the vas deferens, the tubes that carry sperm from the testicles to the urethra. This prevents sperm from mixing with semen during ejaculation, effectively preventing pregnancy. The procedure is typically performed under local anesthesia and is considered a permanent form of contraception. Recovery from a vasectomy usually takes a few days, during which men may experience mild discomfort or swelling. It is important to note that while a vasectomy is highly effective, it does not provide protection against sexually transmitted infections (STIs).