[A CASE OF PREGNANCY POST VASECTOMY].

A 43-year-old man visited our clinic to have surgeryfor contraception. Vasectomywas performed under local anesthesia. The scrotal skin was incised with a scalpel. The vas deferens was cut and the bilateral ends were ligated twofold using 2-0 silk and 4-0 polyglycolic acid suture without mucosal cautery of the vas deferens. Semen analysis revealed two nonmotile sperms in the entire high-power field one month after the surgery. However, eight months later, his partner was pregnant, and subsequent semen analysis revealed 10 to 20 motile sperms per high-power field. Post vasectomyrecanalization of the vas deferens was suspected. It is important to inform couples of the possibilityof pregnancypost vasectomydue to recanalization of the vas deferens. Therefore, obtaining prior informed consent not onlyfrom the patient but also from the partner is needed to avoid litigation.