The main causes of dizziness are hypertension, cerebral artery insufficiency, stroke and so on, as follows: First, hypertension: hypertension is the most common cause of dizziness. It is recommended that patients take a blood pressure test, and if the systolic pressure is greater than 140 mmHg and diastolic pressure is greater than 90 mmHg, it is recommended to take antihypertensive drugs for treatment. Second, cerebral arterial insufficiency: cerebral arterial insufficiency is mainly seen in middle-aged and elderly people with long-term hypertension, atherosclerosis, hyperlipidemia, diabetes, and sometimes mood swings can cause transient ischemia and hypoxia of the brain, resulting in dizziness and other symptoms. Third, stroke: pay attention to exclude the possibility that the patient has had a stroke, especially transient cerebral ischemic attack, the patient has transient ischemia, which can lead to dizziness and other phenomena. In conclusion, if dizziness occurs frequently, do not be negligent. It is recommended to go to the neurology department of the hospital for a clear diagnosis and guidance on the next step of treatment.