After male ligation, as long as the testicles have normal semen production, they can be revived regardless of the length of time the ligation has been in place. Male ligation is actually a ligation of the vas deferens that carries sperm, thus preventing sperm from being ejaculated into the vagina, without causing any damage to the testicles. The procedure is performed using a special tool to hook the vas deferens from the scrotum and ligate it twice, usually under local anesthesia. After ligation, the man still has a normal ejaculatory process during sex. If he wants to restore his fertility, he can have a vasectomy to release the ligature thread. If it is more difficult to release the ligature line, the vas deferens of the ligated section can be removed and then anastomosed so that the semen can be discharged normally, and if necessary, the vas deferens can be anastomosed under a microscope for better results. If a man wants to undergo recanalization after ligation, it is recommended to go to a regular male clinic and have a checkup before the doctor formulates a treatment plan.