Check out how vasectomy (or male birth control) is done

Vasectomy is a definitive method of male contraception. It is a simple, fast and very effective procedure (99.9% efficiency). It has existed since the 1920s and has been growing in popularity since the 1960s. Approximately 15,000 vasectomies are performed every year in Quebec. Nowadays, more men resort to vasectomy than to women with tubal ligation. Vasectomy is much easier and has far fewer complications.

see more at http://www.votrevasectomie.ca/index.en.html