When doing medication abortion, the symptoms of the discharge of the gestational sac is not very obvious, at the same time, due to each patient’s sensitivity to pain is different, cervical conditions are different, the individual differences in the clinical performance of the patient is very large, there is no uniform standard. But for the majority of patients, in the clinical drug abortion, when the gestational sac is about to be discharged, there may be the following two aspects of the symptoms: 1, the patient’s abdominal pain, the gestational sac is about to be discharged when the uterine contraction of the most intense time period, so the patient is mostly manifested as abdominal pain, individual patients manifested abdominal distension aggravated. However, patients with loose cervix or patients within 1 year of perineal delivery, the cervical opening is loose, and there is no obvious abdominal pain or bloating when the gestational sac is discharged.2. When the gestational sac is discharged, the patient most likely has an increase in the amount of vaginal bleeding, accompanied by the discharge of blood clots. After the expulsion of the gestational sac, the amount of bleeding decreases rapidly and is less than the patient’s usual menstrual flow.