The life span of the IUD is 5-8 years, if there is no discomfort in 5 years, you can keep it on your body and take it out after 8 years. The contraceptive effect of the IUD is relatively good. The longitudinal arm of the IUD contains a copper sleeve, and the copper ions can reach 375mm^2, which is so high that the contraceptive effect is more efficient, but at the same time, the side effect is that there may be irregular vaginal bleeding, and some people may experience prolonged menstrual periods. Therefore, if you find that the bleeding increases or you feel uncomfortable after 5-8 years of having the Maternity IUD, you can take it out in time and then replace it with another IUD.