After menopause, progesterone may or may not cause menstruation, depending on the patient’s estrogen status and the thickness of the endometrium. After menopause, due to the decline of ovarian function, there may be no follicle growth, which may also cause the endometrium not to grow, and without ovulation, there will be no luteinizing hormone, and the patient will not have a period. If the patient has not been menopausal for a long time, the endometrium is still relatively thick, and there is a certain level of estrogen, in this case, if you take progesterone, you will have a period. If the patient has been menopausal for a long time, the estrogen level is relatively low and the endometrium is already very thin, in this case there will be no menstrual flow after taking progesterone. Therefore, the endocrine situation, i.e. hormones and endometrium, is the only way to know if you will get your period.