During post-vasectomy ejaculation, why does one testicle feel like it empties and the other doesn't?

I’m 48. I had a vasectomy 14 years ago. Ever since, when ejaculating, it seems only the right testicle empties and left remains full. I don’t experience any pain. This didn’t happen before the vasectomy. Can you tell me what is going on or what the possible reasons for this are?

ANSWERS FROM DOCTORS (1)


Answered by John C. McHugh, MD

The effect of a vasectomy commonly is different on one side than the other. If one side has a knot, or sperm granuloma, one would have less discomfort on that side as compared to the other. This knot serves as a pressure relief valve, per se.

Regardless, the testicles are not "emptying" sperm or fluid after a vasectomy. What you are feeling is a sensation unrelated to that. It is probably related to the mild pressure gradient that is produced by "blocking off the testicle" because of the vasectomy.

Although aggravating to you, it is not dangerous. You might consider an exam to be sure it is not something else such as chronic epididymitis, which might improve with a round of antibiotics.

Published on Feb 06, 2019

Answered by John C. McHugh, MD (View Profile)

The effect of a vasectomy commonly is different on one side than the other. If one side has a knot, or sperm granuloma, one would have less discomfort on that side as compared to the other. This knot serves as a pressure relief valve, per se.

Regardless, the testicles are not "emptying" sperm or fluid after a vasectomy. What you are feeling is a sensation unrelated to that. It is probably related to the mild pressure gradient that is produced by "blocking off the testicle" because of the vasectomy.

Although aggravating to you, it is not dangerous. You might consider an exam to be sure it is not something else such as chronic epididymitis, which might improve with a round of antibiotics.

Published on Jul 11, 2012


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