Dizziness after hypertension: First, it is usually due to severe hypertension, and hypertensive crisis occurs when the high pressure is >180 mmHg and low pressure is >120 mmHg, and even hypertensive encephalopathy patients will have a significant increase in intracranial pressure, and after the increase in intracranial pressure there will be dizziness, headache, accompanied by nausea, jet-like vomiting, blurred vision, visual field loss, and in severe cases, transient cerebral blood supply Inadequate cerebral blood supply. Second, severe hypertension can also be accompanied by acute cerebrovascular and blood supply insufficiency, and patients may experience dizziness, headache, and in severe cases, transient loss of consciousness. Third, severe hypertension will lead to increased sympathetic tone, and patients will experience reflex dizziness and headache. Fourth, severe hypertension will also lead to increased load on the heart, which will also aggravate cerebrovascular, insufficient blood supply, brain cell ischemia and lack of oxygen, all of which will cause dizziness.