It is not mandatory to take out the male ligation, but you can try to have a vasectomy if you have fertility requirements. Male ligation is a surgical procedure to cut off the vas deferens so that the semen cannot flow out normally, thus achieving temporary infertility. If the patient wants to have children, he can try to have a vasectomy, in which the severed vas deferens is reanastomosed, and some patients can have children through normal sperm discharge. If men want to have children after ligation, they can also try micro sperm retrieval, that is, to retrieve sperm by making an incision in the epididymis or in the testis, and then get pregnant by artificial insemination. To summarize, it is not mandatory to take out the male ligation, but you need to go to the hospital and be evaluated by a professional doctor to decide exactly how to do it.