Patients with dizziness for ten days or more should consider the following reasons: First, if the patient is elderly, it may be caused by cerebral arteriosclerosis, cerebral blood supply deficiency or cerebrovascular spasm. If the patient simply has symptoms of dizziness and nausea, he or she should promptly consult a doctor and improve transcranial Doppler examination to clarify. Second, if the patient has dizziness with unstable walking and ataxia, it is considered to be caused by lesions in the cerebellum and brainstem. For example, cerebellar infarction or cerebellar tumor or occupancy caused by the cerebellar area, it is recommended to improve the head nuclear magnetic examination to clarify. Third, the patient’s dizziness for more than 10 days may not be ruled out due to high or low blood pressure, and it is recommended to improve the blood pressure check. Dizziness may also be caused by heart disease, such as abnormal heart function, which may lead to a decrease in blood supply to the brain tissue, resulting in dizziness.