
I HAD THE PROCEDURE. THE VAS IS CUT. THE PASSAGE FOR SPERM IS SEVERED. SO WHY DO I HAVE TO WAIT?
After a vasectomy you have to wait 3 months (and 30 ejaculations) for the procedure to take effect
THAT’S RIGHT – before finally inaugurating intercourse without additional contraception, you have to wait a while!
This happens for a very mundane reason – after being produced by the testicles, sperm are not stored there at all. They travel to the area of the prostate, where they combine with the other components of the ejaculate and wait there for ejaculation. Every man has such a stored reserve of ejaculate. After the vas is cut, this reserve must be emptied before you can have sex without protection. That is why a minimum of 30 ejaculations or 3 months are needed. Once the desired semen analysis result has been achieved, you can safely have sex without additional contraception.
And why do I have to test my semen at all?
Semen analysis after a vasectomy should be considered a mandatory step. Its importance should not be underestimated. Skipping the semen test can result in an unwanted pregnancy.
First, we test the semen to check whether the vasectomy was effective at all. Of course, with the Open Ended method the failure rate is exceptionally low, half a per mille (one case in 2,000), but the effectiveness of the procedure should always be verified. That way we avoid surprises in the future. We also gain certainty that everything went according to plan.
Second, 3 months is the time the average patient needs to clear the semen present in 30 consecutive ejaculations.
For some patients this time may be somewhat longer, e.g. by a month. In that case we inform the patient of the need to repeat the test after the indicated time or after another 10-15 ejaculations. The patient knows he must continue using protection until a satisfactory semen analysis result is achieved. Some patients need 40-50 ejaculations to fully clear the remaining sperm.
After a vasectomy, a simplified semen analysis is performed – the detailed sperm parameters (count, motility, progressive movement) are not assessed. To check the effectiveness of the procedure, we only check for the presence of sperm in the ejaculate. Detailed information about semen analysis after a vasectomy can be found here.

