Patients with hypertension develop headaches, usually because of high blood pressure, and reflexively cause increased intracranial pressure. When the intracranial pressure increases, there will be obvious dizziness and headache, accompanied by blurred vision, blurred vision, and in severe cases, vomiting, etc. It is usually called the hypertensive triad, also called the intracranial pressure increase triad. Patients must go to the hospital for a systematic examination, which must include head CT, in addition to fundus examination, intraocular pressure examination and intracranial pressure examination. If the patient has increased intracranial pressure due to hypertension, mannitol and tachyphylaxis can be applied to lower the cranial pressure by dehydration, which can relieve the above symptoms. If a patient with hypertension has significant headache due to cerebrovascular hemorrhage, he must be hospitalized for systematic treatment.