There are two possibilities for excessive menstrual bleeding and dizziness. 1st, excessive menstrual bleeding leads to excessive blood loss causing hemorrhagic anemia, which causes a decrease in the number of red blood cells and hemoglobin content in the blood, resulting in impaired blood and oxygen supply to the heart, brain and other important organs. In this case, it is necessary to go to the hematology and gynecology departments to actively treat anemia and adjust menstruation and treat the original disease so that the hemoglobin content in the blood can rise to relieve the symptoms of dizziness. The second is dizziness caused by psychological factors. Patients with excessive menstrual bleeding, even if they do not have anemia, may have dizziness due to excessive psychological stress or stimulation of blood, resulting in somatization disorders. If necessary, anti-anxiety and anti-depressant drugs such as haloperidol and melitrexin can also be used to improve the symptoms.