What happens when a doctor performs vasectomy?

During a vasectomy, a doctor cuts or seals the vas deferens, which are the tubes that carry sperm from the testicles to the penis. The procedure prevents sperm from mixing with semen and being ejaculated, so it acts as a form of male sterilization. This means that while an individual may still experience normal arousal and ejaculate a fluid known as seminal fluid or semen, there will no longer be any sperm present capable of fertilizing an egg and enabling pregnancy.

This vasectomy process effectively cuts off the channel, ensuring that any sperm produced in the testicles are reabsorbed rather than reaching the ejaculatory point via the penis. Following a vasectomy, the testicles will still perform their regular functions, generating sperm cells normally, but since the path has been blocked, these sperm naturally dissipate or are reabsorbed by the body's physiological processes without contributing to potential pregnancy.