Why Order Two?
The British Andrology Society reviewed the vasectomy literature and published their recommended guidelines: Patients should use alternate methods of birth control until they can submit a semen specimen between 16 to 20 weeks after surgery for sperm detection. Men should ejaculate at least 24 times in that 16 week period, then submit a second semen specimen for sperm detection two weeks later. A follow-up semen analysis at one year post vasectomy will guarantee that re-growth of the vas deferens did not occur.