In this randomized clinical trial, pregnant women at the gestational age of 14-28 weeks, referred with a letter from the Legal Medicine Organization for termination, or with other conditions such as intra-uterine fetal death and confirmed premature rupture of membranes, are selected. After giving a complete description of the abortion methods/medicines and their possible complications, as well as the research methodology, the eager patients are included in the study. The subjects are then randomly divided into two groups, and all of them receive the same protocol including 200 µg vaginal misoprostol every six hours. In case of a cesarean section history, a reduced dosage of misoprostol is prescribed for 48 hours, and if there is no response to this dosage, other methods such as intra-uterine catheter or high dose of syntocinon, depending on cervix condition and its dilatation, are used. After the removal of fetus and recording the operation time, an intravenous syntocinon including 40 units syntocinon in one liter normal saline is infused to the patients in Group 1 in an hour. The other group receives 400ug rectal misoprostol. Then, a period of one hour is given for the delivery of placenta and the exact time of delivery is recorded. The patient is monitored every quarter in this one hour period, and her vital signs including blood pressure, heart rate, and bleeding rate, measured based on the consumed pads, are recorded. If the placenta is not delivered in an hour and/or in case of the mother's unstable vital signs and/or severe vaginal bleeding, the patient is subjected to the curettage and the uterine contents are extracted and sent for pathological examination. If the placenta is delivered in an hour, the patient is undergone ultrasound to detect the pregnancy remnants. In case of a positive ultrasound result, the patient is subjected to curettage and the extracted uterine contents are sent for pathological examination to reach a definitive diagnosis. The time of the fetus delivery and the time interval between fetus and placenta removal, as well as the mother's bleeding level, measured based on the decline in hemoglobin rate are recorded (before the abortion and 24 after the abortion).