Mifi refers to mifepristone tablets, fetal arrest took mifepristone tablets to abort belongs to drug abortion. If after eating mifepristone tablets fetal membrane tissue complete discharge, to achieve the effect of termination of pregnancy, generally do not need to do the clearance surgery. If the fetal membrane tissue is not completely discharged after taking the medicine, then you need to clear the uterus. Medication abortion is usually Mifepristone paired with Misoprostol to block the activity of progesterone to terminate pregnancy. Most people may experience mild abdominal pain, and a small amount of bleeding after taking the medication, and the gestational sac will be expelled. The size and integrity of the gestational sac is determined by a medical professional, and if the termination is achieved, there is no need for evacuation of the uterus. If there is prolonged vaginal bleeding, heavy bleeding and severe abdominal pain after the expulsion of the gestational sac, it is suspected to be an incomplete abortion. At this time, after relevant examinations, if it is determined that the abortion is incomplete or failed, it is necessary to carry out removal surgery. In addition, Mifepristone should be taken under the guidance of a doctor.