There are no clinical studies on infertility caused by medication abortion, and there is no standardized value for the exact incidence of infertility caused by medication abortion. But on the whole, if the drug abortion goes well, the chance of causing infertility is very small, the overall chance is less than 10%. Infertility caused by abortion is mainly due to the following aspects: 1, damage to the endometrium. 2, inflammatory diseases leading to endometrial inflammation, tubal impassability. 3, damage to the ovarian function, causing ovarian function,abercrombie france. The first two reasons are the most important causes of female infertility after abortion, completely smooth drug abortion on the endometrial damage is extremely small, 90 days after the abortion of the endometrium will be able to return to normal. If the vaginal bleeding time is short, not more than 10 days, the chance of causing infection is relatively small, so the first two factors leading to infertility can basically be ruled out. The timing of drug abortion is 49 days of pregnancy, the pregnancy is relatively short, the termination of pregnancy on the ovarian function of the damage is relatively small, so the drug abortion caused by ovarian infertility chances are also very low.