Can we be confident since my husband had 2 negative semen samples after his vasectomy? #659/12

My husband had a vasectomy in January 2012.  He provided a semen sample 3 months later and it was negative.  He provided a second sample one month after that and again, it was negative.  I’m assuming negative means zero sperm count.  Can we be confident enough to stop using any other form of contraception?

Yes, you can stop using a backup contraceptive, but since recanalization can very rarely happen, even after 2 negative semen analyses, get a third semen analysis at a year or two post vasectomy.



 From Dr. Lisa Haddad: “Honestly, I am not sure.  I usually say after 2 negatives, you are good.  I may VERY well be wrong.”


To learn more about the advantages and disadvantages of sterilization, go to our website: and click on Choices.  You can also order this wonderful new educational book from our website or by calling 404-875-5001.  Do you have your copy yet?

Lisa Blake Haddad, MD

Family Planning Fellow

Department of Gynecology and Obstetrics

Emory University School of Medicine

Atlanta, GA


Key Words:  vasectomy, semen, negative sample, zero, sperm count, confident, backup contraceptive, recanalization, rarely, analysis, post-vasectomy

Posted 7-3-2012, Updated 7-6-2012


Posted on

July 6, 2012