How effective is vasectomy as a form of contraception?

Vasectomy is highly effective as a form of contraception. The procedure is considered one of the most reliable methods for preventing pregnancy. The failure rate is very low, typically less than 1%, making it more effective than many other forms of birth control.

It's important to note that while vasectomy prevents the release of sperm during ejaculation, it does not provide immediate contraception. After the procedure, additional contraception methods are usually recommended until a follow-up test confirms the absence of sperm in the semen, ensuring that the procedure was successful.

When used correctly and with appropriate follow-up, vasectomy is a reliable and permanent form of contraception for men who have decided to no longer have biological children.