How many injections of progesterone are needed cannot be generalized, and the specific number of injections needed varies depending on the patient’s purpose of the injection, the dosage of the injection, and what kind of disease is being treated. 1. In the treatment of preeclampsia, it is usually used until the pain, bleeding and other symptoms disappear, usually in a week, once or twice a day, usually about 7-14 injections. 2. For the treatment of habitual abortion, injections are given from the beginning of pregnancy, 2-3 times a week, 10-20mg per injection. 3. For the treatment of functional uterine bleeding, if 10mg is injected daily, it needs to be used for 5 consecutive days, i.e. 5 injections; if 20mg is injected daily, it needs to be used for 3-4 consecutive days, i.e. 3-4 injections. 4. For the treatment of amenorrhea, it should be used 8-10 days before the expected menstruation, if 10mg is injected intramuscularly daily, it needs to be injected for 5 days with 5 injections, if 20mg is injected intramuscularly daily, it needs to be injected for 3-4 days with 3-4 injections. 5. For the treatment of premenstrual tension syndrome, it should be used 12 days before the expected menstruation, with each injection of 10-20mg for 10 consecutive days, i.e. 10 injections. This drug should be used under the guidance of a regular physician, do not increase or decrease the dose without authorization, after the use of dizziness, breast swelling and pain, urticaria and other adverse reactions, while severe liver damage patients are prohibited from using this drug.