There are many means of contraception for men, such as condoms, ligation surgery, extracorporeal emission, etc. The most common and effective means of contraception is wearing condoms. The most common, simple and effective means of contraception is to wear a condom, correctly wearing a condom can theoretically achieve a 100% chance of contraception, but pay attention to the choice of better quality condoms, the use of the process to avoid sharp cuts, otherwise breakage will lead to contraceptive failure. Men can also do ligation surgery to achieve contraceptive effect, ligation surgery is to block the sperm delivery channel through ligation, so that sperm stagnation in the tail of the epididymis, later liquefied and absorbed, this method is particularly safe and reliable, the only shortcomings is the need to be completed through the operation, and will cause discomfort and pain, but after the operation is healed, does not affect the normal sex life. Men can also choose to prevent pregnancy through the method of extracorporeal spermatozoa, but there are more uncertainties in this case, and it is impossible to achieve complete contraception. Men should choose a suitable and safe method of contraception to avoid unintended consequences.