The cost of a progesterone shot is about a hundred dollars or so. The drug itself is not very expensive, and pricing varies slightly from region to region and from level to level of medical institution, so you can consult the hospital you visit. As a natural progesterone, it can promote menstruation, prevent lesions caused by overgrowth of the uterine lining, and re-adhesion after endometrial adhesion surgery. In cases of miscarriage due to insufficient progesterone, supplementation as prescribed by the doctor can help to maintain pregnancy. As it is an oily preparation, it is relatively difficult to be absorbed after intramuscular injection, it is better to change the injection site every time and apply hot compresses to the localized area where the lumps are produced, or use thinly sliced fresh potatoes to apply the compresses.