A case of vasectomy is said to have failed as the vasectomised person's wife gives bih to a child ten months after the operation. Which one of the following is the most probable cause :: (A) Failure of the husband to use a condom after vasectomy, (B) Surgical failure, (C) Recanalisation, (D) Wife had extra -- marital contact
Answer is A. Failure of the husband to use a condom after vasectomy