A man underwent vasectomy, but 6 months later his wife was 16 weeks pregnant. What is the most likely cause?: (A) Failure of operative procedure, (B) Pregnancy antedating vasectomy, (C) Recanalization of vas, (D) Failure to use additional contraception in postoperative period
Answer is A. - Misidentification of Vas deferens by Surgeon is the MCC of Failure in Vasectomy.