Usually the sperm analysis results come in fairly quickly (sometimes on the same day). I advise patients to wait 1 week and if they have not received any information from us, to contact us. About 80% of men will be azoospermic at this point (no evidence of sperm in the sample). If there are sperm seen in the sample, then it depends how many and how motile the sperm are. If there are a few non-motile sperm, then the Royal Australian College of Surgeons advise repeat monthly testing until there are no sperm or there are 2 samples in a row showing few non-motile sperm at least 7 months after vasectomy.
The minimum time to submit a sample is 12 weeks and 20 ejaculations following the procedure. There may be times where you wish to wait for longer. The most common reason a vasectomy is carried out whilst a man’s partner is pregnant. In this case it is usually advised for a 6 week period of abstinence post delivery. Therefore men can wait until this period to submit a sample. The longer you wait, the more likely it is that you will provide a negative sample. Information about the logistics of semen collection can be found here at the bottom of the page.