The amount of withdrawal bleeding after taking progesterone is related to the thickness of the patient’s endometrium. Women with a thick endometrium may experience heavy bleeding after taking it. After stopping progesterone, the existing progesterone level in the body can not support the normal endometrial thickening will cause the endometrial lining to fall off, resulting in menstrual vaginal bleeding, that is, withdrawal bleeding, usually occurs about 3 to 7 days after stopping the drug. The exact amount of bleeding is related to the thickness of the endometrium. During the period of withdrawal bleeding, it is recommended to do a good job of personal hygiene, regular washing of the vulva, to avoid foreign bacterial infections. At the same time, pay attention to a light and nutritious diet, avoid contact with spicy and stimulating or raw food. If the amount of bleeding is large, it is recommended to go to the hospital for treatment to stop bleeding. Retreating bleeding after stopping progesterone is normal after using the drug, do a good job of personal hygiene in advance and pay attention to observe the amount of bleeding. If the bleeding is heavy, it is recommended to consult a doctor in time.