Why Semen Analysis is Important
A vasectomy is not effective immediately. After your procedure, active sperm remain stored in your system above the blocked tubes. It takes time and regular ejaculations to clear this remaining sperm out of your body.
The semen analysis is a vital post-procedure test to verify that your semen is completely free of sperm. You must continue to use alternative forms of birth control until we review your results and officially confirm that you are sterile.
Most patients complete this test approximately twelve weeks after their procedure, or after at least twenty ejaculations. This waiting period allows enough time for the remaining sperm to clear from your reproductive tract.

