Attractive abortion is recommended for 50 days of IVF. Drug abortion is medication abortion, if the number of days of pregnancy is less than 49 days, generally can be considered medication abortion, more than 49 days is recommended to attract artificial abortion. If the pregnancy is more than 49 days, the gestational sac is generally larger, this situation if the drug abortion is prone to drug abortion incomplete problem, need to scrape the uterus again, will bring double harm to the pregnant woman. It is generally recommended that pregnant women who are more than 49 days pregnant should undergo attraction abortion. Once found fetal arrest, the earlier the abortion, the better, to avoid delay, to reduce the harm to women. Pregnant women with 50 days of in vitro fetal arrest are advised to go to a regular hospital and consult a professional doctor to avoid blind treatment.