The best time to have an abortion is within 49 days of pregnancy if it is simply an aspiration or curettage operation. The time of pregnancy is calculated from the first day of the last menstrual period backwards, and the size of the gestational sac within 49 days of pregnancy is not too large, but not so small that the scraper misses or misses the suction. At this time, the uterus is not particularly large and the uterine wall is relatively thick, so abortion at this time is relatively less harmful to the body, the risk of surgery is lower, and the mother’s recovery is faster. In addition, it should be noted that if you want to have a painless abortion, the patient needs to have an electrocardiogram, ultrasound and blood tests to make sure that there are no contraindications to anesthesia before you can proceed; and when you have a painless abortion, you should pay attention to the fact that you should fast from food and water for six to eight hours before the operation.