Irregular menstruation, especially anovulatory irregular menstruation, taking progesterone is very good. Because anovulatory menstrual irregularity is due to the fact that the patient does not ovulate, can not form the corpus luteum, there will be no production of progesterone, the endometrium loses the protection of progesterone, and will be prone to endometriosis. Therefore, for patients with this condition, regular supplementation of progesterone, such as progesterone, is recommended to protect the endometrium and prevent endometriosis. In addition, it is necessary to further find out what is causing the menstrual irregularities. For anovulatory menstrual disorders, progesterone can be taken. However, if the menstrual irregularities are caused by other reasons, medications need to be chosen to treat the symptoms.