How effective are vasectomies?

Vasectomies are considered a very effective form of birth control. Andrew Huberman explains that a vasectomy involves cutting the vas deferens, the tubes that carry sperm from the testicles to the urethra. After the procedure, men can still achieve erection, orgasm, and ejaculation, but the seminal fluid released during ejaculation no longer contains sperm 1.

The effectiveness of vasectomies is verified by confirming that no sperm are present in the ejaculate. While vasectomies are generally reversible, some cases may not be. If reversibility is not possible, surgical extraction of sperm from the testicles is an option for those who still wish to have children 1.