Male ligation is a common sterilization measure, the advantage of which is that it achieves the effect of contraception, while the disadvantage is that it may cause complications during the operation. 1. Benefits: Ligation is a common form of contraception. Ligation involves cutting off both sides of the vas deferens and ligating the paravalvular end of the vas deferens, thus blocking sperm from the vas deferens to the ejaculatory ducts, and ultimately achieving the purpose of contraception. After ligation, men can have a review of their semen once a month to make sure that there is no sperm, and then they can have sex without worry. 2. Disadvantages: Although male ligation surgery is relatively less traumatic, there may be some complications during the procedure, such as bleeding, local infection, epididymal stasis, local edema, pain and so on. In addition, in a small number of cases, spermatozoa are still visible in the ejaculate due to anatomical variations or excessive local tension causing recanalization in the short term after surgery. Men may have psychological or mental reactions after the operation, causing decreased libido and erectile dysfunction. Men are advised to consider carefully and reasonably before undergoing ligation surgery and to choose regular hospitals for the surgery, and to seek timely medical treatment if any adverse reaction occurs after the surgery.