In case of irregular menstruation with low volume, it is recommended to do artificial cycle therapy in clinical practice. The main method is to start taking progesterone orally on the 5th day of menstruation, once a day, one tablet at a time, for 21 days, and when the 16th tablet is taken, progesterone can be added, the specific usage of progesterone is to take 2 capsules once a day, for 5 days, and stop taking it together with progesterone. And it is recommended to use the medicine for two consecutive menstrual cycles. If the menstrual volume has started to increase, it is recommended to use it for 3 menstrual cycles. If there is no change in menstrual flow, a clinical sex hormone six test should be done to understand whether the endocrine secretion is normal. In addition, it is also necessary to exclude uterine adhesions due to endometrial damage caused by abortion. In this case, hysteroscopy is needed to separate the adherent tissues and to put on a birth control ring to prevent re-adhesion.