After the abortion 20 days to menstruation, if it can be in 3-7 days natural clean is also normal, you can temporarily observe can, do not worry too much. Because every woman’s menstrual cycle is different, 20 days after the abortion may also be the uterine lining has been repaired, so will come to menstruation. Women should pay attention to keep warm after abortion, avoid getting cold, prohibit eating cold, spicy and stimulating food, pay attention to strengthen the nutrition, diet should be light, not easy to eat fat, sweet and greasy food. One month after the operation, prohibit intercourse and tub bath, pay attention to keep the vulva clean and hygienic. 7-10 days after the operation, you should routinely go to the hospital for ultrasound review to understand the recovery of the uterus. If there is prolonged vaginal bleeding for more than 7 days or more than 7 days after the operation, you should also go to the hospital for examination in time.