Frequent dizziness due to high blood pressure is mainly caused by increased cerebral vasodilation and cerebral perfusion as a result of elevated blood pressure. In addition, some patients with hypertension have cerebral arteriosclerosis caused by poor long-term blood pressure control, resulting in cerebral ischemia or cerebral infarction, which can also lead to symptoms such as dizziness and stuffiness. Patients with hypertension should first observe whether there is a trigger before the onset of dizziness, such as whether it occurs after a change in position, or before taking the next antihypertensive medication, or whether it is related to exertion. Patients should always have a blood pressure monitor at home to measure blood pressure during episodes of dizziness. If the blood pressure is high during a dizzy spell and normal after the dizziness subsides, it may be that the oral antihypertensive medication is inappropriate and needs to be adjusted; however, if the blood pressure is normal and dizziness still occurs, the patient should preferably go to a regular hospital for relevant examinations to find out the cause before effective treatment. Patients with hypertension should try not to smoke, drink alcohol, eat less spicy food, and try not to drink coffee in their daily lives to avoid the above-mentioned substances that can easily cause vasospasm and lead to dizziness, lightheadedness and other uncomfortable symptoms, and patients should also do proper exercise and exercise.