Painless abortion before 4-6 hours can not eat, because of anesthesia, eating is easy to cause the patient to choke during the operation, easy to cause choking, so in the painless abortion before the operation can not eat. Before the operation, we also need to carry out routine preoperative examination, to carry out ultrasound examination, to understand the size of the gestational sac and the location of the bed, but also to carry out routine examination of the leukorrhea, blood test and infectious disease examination. Painless abortion, but also to carry out an electrocardiogram to understand the heart’s condition, if there is no abnormality in the examination, you can choose painless abortion to terminate the pregnancy. 4-6 hours before the operation, fasting water, anesthesiologists static push propofol, the patient in a state of sleep abortion, relatively high safety, the patient does not have pain.