Progesterone can be used to treat shortened menstrual cycles due to progesterone insufficiency, as well as menstrual cycle disorders and bleeding during the second half of menstruation. It is recommended that progesterone be taken orally after ovulation, and at least 10 days of medication should be adhered to in order to achieve the corresponding therapeutic effect, and it should be taken for several months continuously in order to achieve the goal of a complete cure. If progesterone is used to treat infertility, in the clinic due to the insufficiency of progesterone will lead to the phenomenon of infertility, it is recommended to take orally after ovulation. Progesterone may cause dizziness after taking it, so no matter which disease it is used to treat, it is recommended to take it orally at night before going to bed to avoid dizziness.