Health effects of Vasectomy
Having a vasectomy will not affect testosterone levels, sex drive, or the ability to have an erection.
Risk of cancer
Although there have been some concerns regarding a link between vasectomy and prostate and testicular cancer, several large studies suggest that there is no increased risk of any cancer. Heart disease – similar to the situation with cancer, despite some concerns, studies have not found any link between vasectomy and heart disease.
Contraception after a vasectomy
If the semen analysis shows no evidence of sperm you may discontinue the use of other forms of contraception. Vasectomy does not protect against sexually transmitted diseases such as HIV.