Under normal circumstances, it is not recommended to artificially interfere with the onset of menstruation, but if necessary, progesterone preparations can be used as prescribed by the doctor to bring about an early onset of menstruation. The ovaries produce estrogen and progesterone as a result of their cyclic changes, and when progesterone levels drop to a certain level, the endometrium is stripped and menstruation occurs. Artificial intervention in menstruation may lead to irregular vaginal bleeding, menstrual disorders and other adverse effects, so artificial intervention in menstruation is not recommended. For women who need to have early menstruation for special reasons, progesterone and other progestational hormone preparations can be used as prescribed by the doctor. Generally, the medication is discontinued after 7-10 days, and menstruation can usually occur within 1 week after discontinuing the medication. For women who need to have early menstruation, it is recommended that they go to the gynecology department of a regular hospital and use medication under the guidance of a doctor.