The above logo is a microbrewery company in our city and I thought the name lends itself to introduce this blog’s message. I should have been asked to be an investor!
Actually this question comes up often to the urologist. Patients lose a testicle for several reasons to include: chronic epididymitis, orchitis, undescended testicle, testicular cancer, trauma, and chronic pain. In the majority of cases having only one testicle does not affect fertility or male hormone production.
The reason we mention this here is that it does become an issue for the couple desiring a reversal in the male with one testicle. Can you reverse the vasectomy on one testicle and have success? Yes. Do you have a better chance of success after a reversal if you have two testicles? Yes.
Although the one testicle can produce the quality and quantity of sperm for pregnancy after a reversal, having two testicles results in a higher likelihood of success because there are two chances that the anastomosis (the repair of the vas deferens) remain open, two chances of having good fluid in the proximal (testicle side of the vas), and the benefit of two testicles contributing to the semen quality.
It is not unusual at the time of a reversal to have very good quality fluid on one side because of a sperm granuloma on that side, and on the other side the fluid is of poor quality i.e. cloudy with sperm parts and no whole sperm.
So…if we had our druthers, we’d want to begin with two testicles to work with, however it is reasonable to have a reversal if the patient only has one testicle. Of note we often times give a price discount because we only have to one side.