Vasectomy reversal represents major surgery of the scrotom. This procedures reattaches the two ends of the epididymis that were previously divided to prevent sperm from being in the ejaculate. Most men with vasectomies develop sperm antibodies that may hinder fertilization, even if the reversal procedure is surgically successful. Some vasectomy reversals are not successful long-term (the reversal area closes over again). A urologist can do a vasectomy reversal.