At the time of a vasectomy there is still sperm in the tube beyond the site. It takes about 30 ejaculations to clear the sperm. A post vasectomy check is very important.
Patient Non-Compliance With Vasectomy Follow-Up
Urology – September 30, 2013 – Vol. 30 – No. 10
Article Reviewed: Compliance With Semen Analysis. Duplisea J, Whelan T: J Urol; 2013;189 (June): 2248-2251.
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