If a large amount of endometrial shedding occurs after taking dydrogesterone, it may be due to stimulation of the endometrium or normal menstrual flow. If a large amount of bleeding occurs due to endometrial shedding, you should go to the hospital in a timely manner for routine blood and ultrasound examinations to clarify the cause and then give reasonable treatment and handling. Common causes 1. Stimulation of endometrium: Didrogestrel is a kind of progestin that can stimulate the endometrium to thicken and cause changes in the secretion period of the endometrium, and a large amount of endometrial shedding can occur after stopping the drug; 2. Menstrual flow: 3-5 days after stopping the use of didrogestrel, menstrual flow may occur, resulting in endometrial shedding. Especially for women with thick endometrium, a large amount of endometrial shedding may occur at the onset of menstruation. Treatment 1. Drugs: If a large amount of endometrial shedding causes a small amount of vaginal bleeding, you can take hemostatic drugs, such as tranexamic acid and uterine bleeding under the guidance of a doctor. If mild anemia occurs, iron supplements, such as ferrous sulfate, can be taken appropriately. 2. Scraping: If large amount of vaginal bleeding is caused by large amount of endometrial shedding in a short period of time, you should stop taking medication and go to hospital for examination in time, and if necessary, you can choose the method of scraping for treatment, which is more effective. 3. Attention should be paid to keep warm during the treatment period to avoid getting cold. In terms of diet, spicy and stimulating food should be prohibited, and the diet should be light, and more foods containing progesterone can be eaten, such as soybeans, celery, enoki mushrooms, etc. Drink more water, ensure sufficient sleep and keep a happy mood.