It is an abnormal phenomenon to have menstruation one week after abortion, and it is not menstruation, it is abnormal uterine bleeding. Because after abortion, the endometrium goes from the proliferative phase to the secretory phase, and it takes about 20 days to a month for the endometrium to be fully repaired, and ovulation will resume in about 20 days after the abortion. Therefore, it is an abnormal phenomenon to have menstruation one week after abortion. It is recommended to go to the hospital as soon as possible for examination to rule out the possibility of incomplete abortion. It may also be due to the fact that after the abortion, you have taken medicines that activate blood circulation, such as ginseng, deer antler, red dates and so on, which can also cause abnormal bleeding, so go to the hospital for examination, and then according to the results of the examination, and then give the appropriate treatment.