The advantage of male sterilization is that it is a simple and effective contraceptive, while the disadvantage is that it may cause epididymal lesions and affect pregnancy. The advantage of male sterilization is that the operation is relatively simple and less damaging. The vas deferens, the tube that carries sperm, is cut off and ligated to achieve the purpose of permanent contraception. If there is a need to have children again, the vas deferens can be unblocked again through vasectomy. However, if the ligation has been in place for too long a period of time, such as 10 years or more, even if it is reopened, pregnancy can still be affected. The bad side of ligation for men may be due to the stagnation of semen, leading to lesions in the epididymis, resulting in the development of pain and infection. Some patients also have psychological effects after ligation. People suffering from history of mental illness, neurosis, inflammation of the reproductive system, etc. are prudent to undergo sterilization. Men who undergo ligation should go to regular hospitals to undergo the surgery, and if they experience any discomfort after the surgery, they should go to the hospital in time to receive diagnosis and treatment from professional doctors.