If the vas deferens opened on both ends, would it be possible for sperm to jump across and exit the ejaculate without a direct connection?

I had a vasectomy 27 yrs ago. I cannot feel the hard cauterized tube ends like I used to feel through the skin with my fingers. I might go for a semen analysis. Do the tubes need to be directly re-connected or could sperm swim across the area between and out the other end of the tube?

Answers from doctors (2)


More About Doctor Yasmin Bootwala M.D.

Published on Oct 15, 2019

This is extremely unlikely. There is a 1 out of 2000 chance that the ends find there way back together after a successful vasectomy (this is called recanalization). The sperm are unlikely to survive outside the vas deferens environment. I would say the odds are less than 1 out of 2000 (most likely never).

Answered by Yasmin Bootwala M.D. (View Profile)

This is extremely unlikely. There is a 1 out of 2000 chance that the ends find there way back together after a successful vasectomy (this is called recanalization). The sperm are unlikely to survive outside the vas deferens environment. I would say the odds are less than 1 out of 2000 (most likely never).

Published on Jul 11, 2012


More About Doctor John C. McHugh, MD

Published on Mar 29, 2019

If you have any concerns, you should get a semen analysis. Sperm cannot jump across and go out the other end. Recanalization happens when the two cut ends of the vas deferens in the scrotal area reconnect and re-establish the channel, allowing the sperm to be in the ejaculate. The journey out from the testicle goes up the inguinal canal, behind the bladder, into the prostate and then out the urethra. Sperm are active little critters but they can't jump that far!

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

If you have any concerns, you should get a semen analysis. Sperm cannot jump across and go out the other end. Recanalization happens when the two cut ends of the vas deferens in the scrotal area reconnect and re-establish the channel, allowing the sperm to be in the ejaculate. The journey out from the testicle goes up the inguinal canal, behind the bladder, into the prostate and then out the urethra. Sperm are active little critters but they can't jump that far!

Published on Jul 11, 2012


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