What is the medical procedure for a male who does not want to have kids anymore?

Vasectomy: It is the most common male birth control, It's done by cutting and sealing the tubes that carry sperm. A vasectomy won't affect your sex drive or your masculinity in any way other than preventing you from fathering a child, Men have even reported higher sexual satisfaction after a vasectomy. There are some mild side effects like: bruising of your scrotum, mild pain.