Daytime dizziness may be caused by lack of sleep at night and is mainly treated by improving sleep. It may also be caused by elevated blood pressure. Dizziness caused by elevated blood pressure is mainly treated by lowering blood pressure, and can be treated with oral amlodipine, amlodipine besylate, irbesartan and valsartan. Dizziness can also occur when the patient’s blood pressure is too low. Low blood pressure tends to cause hypoperfusion in the brain, which may cause cerebral hypoperfusion, and patients with cerebellar brainstem hypoperfusion mainly present with dizziness, nausea, vomiting, balance disorders and ataxia. If the patient has cervical spondylosis, which can cause inadequate blood supply to the vertebrobasilar system, the patient may also experience dizziness, nausea, vomiting, balance disorders and ataxia. If the patient has prolonged mental tension and stress, it can easily cause contraction and spasm of the neck and shoulder muscles, which may also cause the patient to become dizzy, and some patients may also have headache, etc. Dizziness may also occur if the patient has anemia. The patient’s blood count should be checked, and the cause of the anemia should be actively sought and treated accordingly.