Dizziness before menstruation may be related to the following factors: First, individual differences are different, everyone in the menstrual period may occur hormone level changes, for the hormone level changes in each person’s response is not the same, some people in the menstrual period before the corresponding symptoms, such as dizziness, fatigue, lazy speech, drowsiness, some people may have insomnia and other corresponding symptoms, and Some people may have insomnia and other corresponding symptoms, and some people may have hidden pain in the lower abdomen, so this may be a physiological reaction, and it is recommended to give proper rest and replenish energy when dizziness occurs. Secondly, the patient may have anemia or hypoglycemia, which will lead to dizziness, and the decrease of body resistance before menstruation will aggravate the dizziness, so it is recommended to go to the hospital to check the blood routine and check whether the blood sugar is abnormal.