Do painless curettage using intravenous anesthesia, the patient drip after the establishment of intravenous access, by the anesthesiologist intravenous injection of propofol, about 30 seconds after the patient will enter a sleep state, the doctor can carry out the operation, the entire operation time of about 3-5 minutes, are in the state of the patient’s sleep to complete the operation, there is no pain in the process of the operation, the patient in the operation will be awake naturally in 5-10 minutes after the operation, 30 minutes after the operation, if there is no discomfort, you can leave the hospital accompanied by family members. After 30 minutes, if there is no discomfort, the patient can leave the hospital accompanied by family members. Because anesthesia is simple, convenient and safe, it is widely used in clinics, such as painless abortion, painless gastroenteroscopy, etc. Before the operation, it is necessary to fast for 6 hours and require someone to accompany the patient. Painless curettage is mostly used for repeated irregular vaginal bleeding, ultrasonic examination of endometrial thickening or a large amount of vaginal bleeding, in order to stop bleeding at the same time according to the needs of the disease can also be sent to the pathological examination of the scrapings to help diagnose the disease.