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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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    How to know if the vasectomy failed?

I had a vasectomy 13 weeks ago, have ejaculated at least 100 times (daily regimen). My first semen analysis at 8 weeks came back clean . My 13 week analysis came back with occasional motile sperm . They want me to continue testing every 4 weeks until two clears. Did the procedure fail?
Thu, 19 Feb 2015
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General & Family Physician 's  Response
Thanks for asking in healthcaremagic forum
Sperm growth and maturity takes around 03 months and is a continuous process. So,even after vasectomy some of the sperms continue to pass through cut vas till it heals. So, 15-20 ejaculation/3-4 months of time is needed to prevent this. So, use of protection till then/till it becomes negative is advised.
So, you are within that interval and can wait for some more time to say whether your surgery failed/not. All the best.
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