There is no long-term contraceptive pill that does not harm the body. If you want to choose a long-term effective contraceptive measure, you can choose to put on a contraceptive ring, which prevents conception by preventing the fertilized egg from settling in the uterus, and the contraceptive rate reaches more than 95%, with the advantage of fewer side effects, and it can be left in place for a long period of time, or even taken out again when you go through menopause. It is easy for the ring to fall off or become ectopic during the first month after the IUD is inserted, so you need to go to a gynecological ultrasound every month to determine the position of the ring to avoid ectopic pregnancy with the IUD. There are gynecological inflammation, excessive menstruation, irregular vaginal bleeding or reproductive tract tumors should not take the ring, this patient can choose condom, by avoiding sperm and egg encounter and contraception, contraceptive rate of 80% -95%, but it is recommended to wear a condom throughout the whole process, the advantage is that there is not the slightest interference in the body of the woman, but also to prevent sexually transmitted diseases.