1.People with medical and surgical comorbidities and drug allergies or other high-risk factors should inform the outpatient doctor, and the outpatient doctor and anesthesiologist will decide on the surgical method. 2.The following examinations are done before abortion in our hospital: gynecological examination, vaginal discharge examination, urine pregnancy test, ultrasound (to determine the location and size of the pregnancy sac), blood routine, electrocardiogram, blood HIV, PRP (to exclude syphilis and AIDS to prevent cross-infection.) 3.Avoid sexual intercourse within one week before abortion to avoid the risk of vaginal infection. 4, if you are doing painless abortion, fasting and water fasting for at least 6 hours before the operation; do not rub lipstick, nail polish, have painted nail polish, please wash off the nail polish on the right thumb (to facilitate intraoperative life monitoring) 5, abortion the night before a shower, emphasizing the cleaning of the vulva, but pay attention not to let the water flow into the vagina. Wear clean, easy to put on and take off underwear and outer pants. Before going out, bring a few sanitary napkins and some neat facial tissues. 6. Painless abortion must be accompanied by a family member. (1) Two temperature tests before the operation exceed 37.5 degrees Celsius. (2) poor physical condition, such as acute inflammation and acidosis caused by severe vomiting of pregnancy has not been corrected, etc., can not be competent for surgery, need to be treated after the improvement before surgery. (3) Blood pressure higher than 150/90 mmHg measured twice before surgery. (4) Sexual intercourse within 3 days before surgery. (5) Cough and sputum, nasal congestion and runny nose should be suspended for painless surgery