Vertigo before menstruation may be related to premenstrual syndrome, or it may be caused by low blood pressure and iron deficiency anemia. 1. Premenstrual syndrome (PMS): It is considered that it may be related to the fluctuation of estrogen and progesterone levels before menstruation, which may manifest as premenstrual dizziness, and may also be accompanied by breast tenderness, abdominal distension and other manifestations. 2. Low blood pressure: Some women have low blood pressure, which may be aggravated by changes in estrogen and progesterone levels before menstruation, thus causing premenstrual dizziness, which may be accompanied by weakness and fatigue in the limbs. 3. Iron deficiency anemia: some women have iron deficiency anemia, and before menstruation, some women may experience bloating, fatigue, low back pain and other premenstrual syndrome, due to physical discomfort, resulting in poor diet, which is likely to exacerbate iron deficiency anemia, which may cause premenstrual dizziness. Vertigo before menstruation may also be caused by other reasons. If the symptoms are serious, you should seek medical advice as soon as possible to diagnose the triggers and then provide targeted treatment and conditioning.