The complete absence of sperm from an ejaculate is the most relevant criterion used to determine the successful surgical operation of a vasectomy procedure.
Following a vasectomy.
|Sample & container required
|A complete fresh ejaculate produced on site in one of the Andrology Department's production rooms.
Samples produced offsite will not be processed as of 1st June 2017
The Andrology service is open between the hours of 08.30 and 14.00 Monday to Friday (excluding bank holidays) and operates on an appointments system only.
Minimum detection limit
Minimum detection limit for this assay is 1300 sperm per mL.
Guidelines published in 2016 in a collaborative report by the Association of Biomedical Andrologists, British Andrology Society & British Association of Urological Surgeons state that:
Post vasectomy semen analysis should take place a minimum of 12weeks after surgery and after a minimum of 20 ejaculations. Samples should also be assessed within 4 hours of production and if non-motile sperm are observed, further samples must be examined within 1 hour of production. Assessment of a single sample is acceptable to confirm vasectomy success if all recommendations and laboratory methodology are met and no sperm are observed. Clearance can then be given.