The Body
Vasectomy
Q: After a vasectomy does an individual need to use protection the first few times just in case there is some semen remaining in the seminal vesicles?
Dr. Klein: Vasectomy involves snipping and tying the tiny tubes (seminal vesicles) that carry semen from the testicles out through the penis. Therefore, there is some sperm left in the tubes after a vasectomy. A condom should be used for at least 5 ejaculations–continuing until a sperm test indicates there is no more sperm leaving the penis.
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