After a male has a ligation, he will not ejaculate and will not be able to cause the female partner to become pregnant. A male ligation is a relatively secure procedure in which a small incision is made in the scrotum to sever the vas deferens on both sides by more than 1cm, and then the two severed ends are sutured and ligated. Then the two severed ends are sutured and ligated. There is a blockage of the vas deferens, and the sperm produced by the testes will not pass through the vas deferens and be ejected out of the body to cause the woman to become pregnant. Furthermore, after the ligation procedure, a routine semen test is usually performed to confirm the presence of sperm in the semen. If the procedure is successful, it often indicates that the fluid does not contain any sperms, but only prostate fluid or a small amount of seminal vesicle fluid, and therefore will not cause the woman to become pregnant. If a man has a desire to have children after the sterilization, he will need a vasectomy to restore the patency of the ureter in order for the woman to become pregnant. After the vasectomy, the spermatozoa in the testicles can be ejaculated out of the body through the vas deferens.