After pregnancy for reasons such as preeclampsia, patients need to be treated with progesterone. Progesterone, as a generic medication to protect the fetus in early pregnancy with preeclampsia, is available as a 20mg injection at a price of about three dollars per injection. Patients need to choose the dose according to the vaginal bleeding, the usual dose is one injection per day, usually for a week to observe the vaginal bleeding. If the patient has heavy vaginal bleeding during this period, the amount of two shots per day may be used. Progesterone shots are inexpensive and are necessary for early miscarriage to settle the pregnancy. Progesterone is widely used in obstetrics and gynecology, and is also very safe, patients can choose to perform progesterone myeloablative treatment according to their own situation.