Many women experience headaches during menstruation mainly because of these reasons: 1. The ovaries secrete less estrogen during menstruation, the level of estrogen in the body decreases, and the blood transfusion function in the body is weakened, which is why they feel headaches. 2. The amount of bleeding during menstruation is relatively large, and the blood supply is insufficient, so the brain will feel headaches due to lack of oxygen. 3. If life or work is usually too stressful, it is easy to This can lead to headaches. If you only have a slight headache during menstruation, it is a normal physiological phenomenon and does not require special treatment, you must relax, avoid straining and tension, and you can eat appropriate blood-supplementing foods or drink brown sugar water for some relief. If you have frequent headaches or severe headaches during menstruation, you need to go to the hospital in time to see if it is caused by a disease.