As people are more and more concerned about their health, many women are becoming more and more concerned about their health, especially when it comes to the issue of contraception is also gradually rising. Now there are many kinds of contraceptive methods, no matter what kind of contraceptive methods will cause some harm to women’s bodies, but the degree of harm is different, so women in the choice of contraceptive methods can choose some of the methods that are more harmful to the body. 1, topical contraceptive film contraceptive mechanism: by reducing the vitality of sperm and contraception, the victory rate of 96%. Advantages: no damage to the vaginal epithelium, and does not change the vaginal self-cleaning effect, long-term use is not harmful to the body, and does not pollute clothing. The main point of safe contraception: usually should be placed in a cool and dry place to prevent moisture from affecting the effectiveness of the medicine. Do not rub it too tightly or too small when using it, otherwise it will affect the dissolution of the drug. Must use fingers to send it to the depths of the vagina, and in 10 minutes after intercourse, if the intercourse time more than half an hour, should also add another put a. 2, the uterus put birth control ring contraceptive mechanism: by preventing fertilized eggs in the uterus and contraceptive victory rate of more than 95%. Advantages: less side reflections, can be placed for a long time, even to menopause and then removed. The main point of safe contraception: the ring is easy to leave the normal position within 3 months after the IUD, so you should always go for X-ray inspection to avoid the ring leaving the normal position and conceiving with the ring. Gynecological inflammation, excessive or irregular menstruation and reproductive tract tumors should not bring the ring. 3, male condoms contraceptive mechanism: by avoiding the sperm and egg encounter and contraception, the victory rate of 80%-90%. Benefits: no nuisance effect on the physiology of the female body, but also to prevent sexually transmitted diseases. The key point of peaceful contraception: the model must be suitable with the user. And, must be used at the beginning of the intercourse, broken and deteriorated condoms must not be used again. Afterwards, you must press the top of the condom and pull out the penis together, and check whether there is semen in the small sac of the condom, so as to confirm that the condom is indeed not broken.