There are many reasons why a patient may feel dizzy for a while: 1. Consider elevated blood pressure, which can lead to bouts of dizziness. 2. If the patient’s dizziness lasts for a long time, consider it to be caused by cerebral arteriosclerosis, cerebral vascular spasm, and cerebral blood supply deficiency, which can only be clarified by combining the patient’s transcranial Doppler examination. 3. The patient’s dizziness may also be caused by physiological factors, such as dizziness and lightheadedness caused by work exhaustion, late nights, lack of sleep, and mental stress. 4.