It is possible to reverse a vasectomy. Approximately five percent of American males undergo vasectomy. Of that number, two to three percent choose to reverse the procedure. Not every attempt to reverse a vasectomy will work. If the reversal is performed within 10 years of the vasectomy, the rate of successful reversal is about 60 to 75 percent. After 15 years, however, it drops to about 30 percent.