Previously, patients under general anesthesia, especially after the use of general intravenous anesthetic drugs, had delayed awakening after surgery, even up to several hours, and were accompanied by side effects such as nausea, dizziness, delirium and poor orientation. Since 1996, when the new general anesthetic drug Propofol was successfully marketed in China, the level of anesthesia in China has made a qualitative leap. Its most important features are: fast onset and fading, good quality of sleep and a certain sense of euphoria. It is especially suitable for anesthesia for short outpatient procedures such as abortion. The specific method of the “painless abortion” technique is: the patient will fall asleep seconds after the anesthesiologist slowly pushes or pumps propofol into the vein with a syringe pump, and the anesthesiologist will add or reduce the amount of medication as appropriate according to the time needed for the operation to begin, and stop the medication at the end of the operation, and the patient will be awakened in a few minutes. Patients can say their names and birthdays accurately and have good orientation, and they do not feel any pain during the surgery. Therefore, the fast “painless abortion” technique makes it possible for gynecologists to perform more than a dozen abortions in a row in half a day.