Men can be re-instrumented after ligation. The success rate of post-ligation recanalization surgery is usually related to factors such as the timing of the ligation and testicular function. Men with fertility needs after ligation can have their vas deferens restored through vasectomy, but this is a more complicated procedure that requires finding the severed ends of the vas deferens on both sides of the tube under a microscope, trimming them neatly, and then stitching the lumen back together again, so that sperms can be discharged out of the body through the vas deferens again. The success rate of post-ligation vasectomy is not 100%, and is mainly related to factors such as the duration of the ligation and testicular function. If the ligation has been performed for more than 10 years, the function of the epididymis and testes may be more affected, and the success rate of recanalization will be relatively lower; if the man is older at the time of recanalization surgery, the function of his testes and epididymis may be declining, which may affect the quality of his semen after the surgery. If a man has a need for recanalization after ligation, he should go to the hospital in time to complete the relevant examinations and undergo the operation after the doctor has assessed the feasibility of the operation.