Anemia has an effect on menstruation because it is a clinical syndrome that occurs when the volume of red blood cells in the peripheral blood is lower than normal. Patients with anemia, especially those with chronic severe anemia, can have a significant impact on all systems of the body. For female patients, long-term severe anemia, in addition to affecting respiratory, circulatory, and motor functions, can also have a significant impact on the body’s endocrine system, which can manifest as irregular menstruation, changes in the menstrual cycle, and so on. Severe anemia, in particular, has a serious impact on all aspects of the body and requires active investigation and treatment of the cause. For example, the most common type of anemia is iron deficiency anemia, which is also the most common type of anemia in women, and is related to insufficient iron intake, excessive menstruation, and impaired absorption, etc. After giving iron supplementation treatment, there is often a better clinical treatment effect.