Sterilization is considered to be an irreversible method of contraception.
There is no guarantee that previous fertility can ever be restored. The successful rejoining of the vas deferens or the fallopian tubes is a very delicate piece of surgery and difficult to accomplish. More research is needed and new surgical techniques devised before it can be confidently asserted that a vasectomy or tubal ligation can always be reversed. In dealing with these misconceptions, it is important to remember that the surgical procedures used for a vasectomy in no way affect the production or secretion of hormones responsible for maintaining sexual functioning and characteristics. Usually two small incisions are made in the upper end of the scrotum where it joins the body.