A vasectomy works by stopping sperm getting into a man's semen, the fluid that he ejaculates. The tubes that carry sperm from a man's testicles to the penis are cut, blocked or sealed with heat. This means that when a man ejaculates, the semen has no sperm in it and a woman's egg can't be fertilised.

What happens to a man when he gets a vasectomy?

A vasectomy blocks or cuts each vas deferens tube, keeping sperm out of your semen. Sperm cells stay in your testicles and are absorbed by your body. Starting about 3 months after a vasectomy, your semen (cum) won't contain any sperm, so it can't cause pregnancy.

Can you still nut if you have a vasectomy?

You will ejaculate semen (seminal fluid) after a vasectomy but it will no longer contain sperm (the reproductive cells) once you have ejaculated about 20 times. A vasectomy blocks the sperm made by the testes from reaching the semen.