Irregular menstruation is usually treated in the gynecology department or the reproductive endocrinology department because many menstrual problems can be caused by endocrine dysfunction of the ovaries, so after menstrual problems occur, you can go to the gynecology department or the reproductive endocrinology department in the hospital for consultation. However, many hospitals do not have a special reproductive endocrinology department, so you can only see a gynecologist. For particularly large tertiary hospitals that have specialized reproductive endocrinology departments, they can look at women’s menstrual problems. It is necessary to check the six hormones and the anti-mullerian tube hormone to determine the reserve function of the ovaries. The most important thing is to check the ultrasound to see the thickness of the woman’s lining and the size of the uterus and ovaries. For women with chronic irregular menstruation, thyroid function may also need to be checked specifically, as abnormal thyroid function can also cause abnormal menstruation.