Taking progestin preparations can generally promote the rapid onset of menstruation, but it is not possible to promote the absence of menstruation if it is caused by an abnormality of the uterus. If you want to promote the rapid arrival of menstruation, you should first find out whether you are pregnant or not. If you are pregnant, your menstrual period will be delayed, and you should not use progestins or other menstrual stimulants at this time. If you are not pregnant, you can take progestin preparations such as progesterone under the guidance of your doctor, and you can usually have your period in 5 to 7 days. Progesterone is suitable for anovulatory dysmenorrhea and anovulatory amenorrhea, and also has a good effect on menopausal syndrome. Some women who do not have menstruation due to thin endometrium caused by low estrogen or uterine adhesions cannot have menstruation after taking progesterone. At this time, they should cooperate with other treatments in order to have menstruation. Pay attention to personal hygiene, keep a good mood, and develop good living habits.