There are two main categories of the following effects: 1. Menstrual regulation, for patients with irregular menstrual cycles, frequent ovulatory bleeding, or a small amount of dripping before menstruation, prolonged bleeding, and menstruation lasting longer than 7 days. Dihydrogesterone tablets can be used to regulate the endocrine function of the ovaries and thus the menstrual cycle after ovulation. Generally, the next menstrual period will come 2-5 days after stopping the medication, which will adjust the menstrual cycle to the normal range of 26-30 days. 2. For the treatment of abnormal endometrial hyperplasia, including simple hyperplasia disorder of the endometrium, and endometrial polyps, or young patients with precancerous endometrial lesions. Because digestrol is a progestin, which is mainly used to antagonize the effect of counteracting estrogen, it can be used to treat disorders related to abnormal endometrial hyperplasia.