Induced abortion can not be done on the same day, because a series of preoperative examinations are usually required to determine the results are normal before the operation to protect the patient’s life safety, preoperative preparations are mainly in the following areas: 1, determine whether to meet the indications for induced abortion: before induced abortion, the first to confirm whether to meet the indications for induced abortion, through the uterus and fetal ultrasound to determine the mode of induced abortion; 2, to determine the degree of cervical ripeness: the application of the Bishop score to determine cervical ripeness. Bishop score to determine the degree of cervical ripeness, score ≥ 7 points suggests cervical ripeness, the higher the score, the easier to induce labor successfully, the score of 6 points or less, you need to promote cervical ripeness through drug treatment; 3, routine examination: general examination items include routine blood, urine, coagulation, liver and kidney function, hepatitis B, hepatitis C, syphilis, AIDS antibody, as well as electrocardiography, ultrasound and other tests, to ensure that the basic patient Vital signs are normal to prevent accidents during the operation; 4. Clearly there are no other diseases: if there is vaginitis in the gynecological examination, vaginitis must be cured before induced abortion. If there are comorbidities that are not suitable for the operation, it is necessary to carry out treatment and adjustment first, and carry out the operation at the best time for termination of pregnancy. On the day of admission, the patient is usually examined to determine if she is suitable for induced abortion, and if she meets the indications for surgery, she is usually induced on the next day or at an appropriate time. In addition, if the pregnant woman does not have serious systemic diseases and the fetus is well developed, induction of labor is usually not recommended, as it is more harmful to the pregnant woman’s body.