There are many clinical contraceptive methods, such as intrauterine devices, oral contraceptive pills, sterilization, and condoms. The vast majority of men are more resistant to the use of condoms, if the oral contraceptive pill, there will be certain side effects, such as may cause menstrual disorders, which may lead to irregular vaginal bleeding or water and sodium retention, resulting in weight gain, obesity, and some people will appear on the face of the color spots, which is a side effect of the contraceptive pill. It is recommended that the best method of contraception, and is a long-term contraceptive method is on the intrauterine device, the current intrauterine device due to the improvement of technology, the contraceptive effect in the clinic can be as high as 99.6%, and the relative side effects have also been reduced, the vast majority of on the IUD can achieve a very good contraceptive effect, it is recommended that on the IUD contraception.