Post-Vasectomy Sperm Check: Do I Need Another Test After 3 Months? - Urology

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Vasectomy and Sperm Analysis Issues


I would like to consult a physician.
I underwent a vasectomy in early October last year, and by early November, I had already ejaculated on my own 15 times and had undergone sperm analysis at a large hospital and a medical laboratory, both showing a count of zero.
Now, more than three months have passed; do I still need to go back for further testing? Additionally, I have a physically demanding job and a regular habit of jogging.
Could this lead to a rupture of the vas deferens site and cause it to reconnect on its own?

Xiao Chen, 30~39 year old female. Ask Date: 2017/02/12

Dr. Du Shixi reply Urology


Hello: No, after a vasectomy, a sperm count of zero is sufficient, and no further testing is needed.
This is the consensus worldwide.
Thank you for your inquiry.

Reply Date: 2017/02/12

More Info


After undergoing a vasectomy, it is standard practice to have a follow-up sperm analysis to confirm the success of the procedure. Typically, this follow-up is recommended around three months post-surgery. The purpose of this test is to ensure that there are no sperm present in the ejaculate, indicating that the vasectomy was successful in preventing sperm from being released during ejaculation.

In your case, since you have already had two sperm analyses that both returned a count of zero, this is a very positive sign that your vasectomy was successful. However, it is still advisable to follow the recommended guidelines and have another test done around the three-month mark or shortly thereafter. This is because sperm can sometimes take time to clear from the reproductive tract, and it is important to confirm that there are no residual sperm present.
Regarding your concern about physical activity and the possibility of the vas deferens (the tube that carries sperm from the testicles) being damaged or reconnected, it is generally unlikely that normal physical activity, such as running or engaging in heavy labor, would cause the vas deferens to reconnect or become compromised. The surgical procedure is designed to be permanent, and the risk of re-canalization (the reconnection of the vas deferens) is quite low. However, if you experience any unusual symptoms, such as pain, swelling, or changes in your ejaculate, it would be prudent to consult your healthcare provider.

In summary, while your previous tests are encouraging, it is still recommended to have a follow-up sperm analysis to ensure that the vasectomy was completely effective. This will provide peace of mind and confirm that you are indeed sterile. If you have any further concerns or symptoms, do not hesitate to reach out to your healthcare provider for further evaluation.

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