Irregular menstruation is not an endocrine disease, but a gynecological disease. Irregular menstruation is a common gynecological disease, which is mainly manifested by menstrual cycle disorder or abnormal bleeding. It will trigger women to experience abdominal pain, irregular menstruation, disrupted bleeding, etc. In serious cases, gynecological inflammation and infertility will occur, even affecting women’s work and life. The causes of irregular menstruation are mainly divided into two categories, one is functional causes and the other is organic causes. Functional causes include endocrine disorders, fatigue, nutritional status, environmental factors, mental factors, etc. Organic causes include endometritis, endometriosis, gynecological inflammation and so on.