What happens to the sperm when you have a vasectomy?

Vasectomy is an effective way of sterilizing men permanently. The surgical procedure involves partially removing (cutting) or blocking both sides of the vas deferens to stop sperm from getting into the semen. A vasectomy is not intended to stop the production of sperm; it just ensures that the sperm produced in the testes does not reach the ejaculate and no longer reaches the female reproductive tract to trigger pregnancy.

So what is the fate of the sperm that is still produced after a vasectomy?

After a vasectomy, your ejaculations remain much the same as before the procedure. You will still produce as much ejaculatory fluid as before and will experience the same feeling and pleasure as before the operation. The only change is that your semen will no longer have sperm. However, since sperm is just around 2-5 percent of the ejaculate volume, there is no significant difference in ejaculate volume after a vasectomy.

Continued production of sperm

The testicles continue to produce sperm even after a vasectomy. The testicles are made up of small, coiled tubes known as seminiferous tubules, which produce sperm. In the tubules are sperm nurse cells that regulate sperm stem cells. The tubules are also surrounded by testosterone-generating cells, which promote sperm development by stimulating the nurse cells and in turn controlling the sperm stem cells. It takes around 70 days for sperm cells to develop fully and be ready for action. After sperm cells are produced, they move into the duct where some proteins are added to improve sperm performance. The sperm then gets into the vas deferens (tubes) for transportation to the ejaculation point.

Fate of sperm after a vasectomy

For sperm to mature, it is usually stored in a tube called the epididymis. The epididymis is a tightly-coiled tube measuring 15-18 feet long where sperm usually leaves to the vas deferens to take part in fertilizing an ovum (egg). After undergoing a vasectomy, the sperm cannot move out of the epididymis. Therefore, most of the sperm is absorbed by the lining (membrane) of the epididymis and dissolves naturally into the body.

Open-ended vasectomy

At St Pete Urology, we use the open-ended vasectomy procedure as part of our no-scalpel, no-needle technique to improve sperm drainage after vasectomy. We understand that a man’s testicles age and the sperm machinery may be less efficient with time. Therefore, instead of leaving our patients to rely solely on the epididymis for sperm disintegration and absorption, we apply the open-ended technique to ensure the bottom end of the tubes (vas deferens) is left open (uncauterized) while cauterizing the end leading to the penis, providing a reliable way for drainage of sperm after a vasectomy. The open-ended technique ensures that sperm is naturally reabsorbed back into the testes without any pain, discomfort or pressure.

Are you planning to have a vasectomy? At St Pete Urology, we perform the procedure using a simple, safe and effective method. Our no-scalpel, no-needle technique ensures quick recovery and a return to work in as soon as 2 days. Want an appointment with our vasectomy experts? Visit the “St Pete Urology” site.