There are two types of ligation, female ligation and male ligation. For women, tubal ligation is a permanent form of contraception. It does not affect the hormonal secretion of women after ligation, so there is no effect on mood or menstruation. If you want to have children again after ligation, you can go to a regular hospital for tubal ligation and reversal. This is a corrective surgery, i.e. removing the scar of the original ligation site and performing end-to-end tubal anastomosis, ostomy or horn transplantation. However, the rate of conception may be reduced after tubal reversal and is associated with certain risks. Similarly, male vasectomy is a procedure to cut off the vas deferens, which carries sperm from the testicles to the penis, so that the sperm cannot enter the semen and is discharged from the body. But the vasectomy does not damage the testicles, the testicles of the varicose sperm and interstitial cells can still continue to produce sperm and secrete sex hormones to maintain the normal sexual function of men, and maintain the secondary sexual characteristics of men. So men with ligation surgery do not have to worry about loss of sexual ability, premature ejaculation and impotence after vasectomy. If men have fertility requirements after ligation, they can have vasectomy reversal surgery again and can also have children. To sum up, if a man has fertility requirements after ligation, he can take certain means to help him conceive, but whether he can successfully conceive depends on the specific situation of the couple.