Hypertension carries a risk of causing migraine headaches. Mild cases of hypertension may be asymptomatic; moderate to high risk of hypertension, hypertensive emergencies, hypertensive sub-emergencies, malignant hypertension, hypertensive crises, etc. may cause migraine, nausea, vomiting, optic nerve papillae edema or even lead to cerebral hemorrhage. The nature of migraine caused by hypertension is mostly pressure pain, distension, arterial throbbing pain, etc. If accompanied by hypertensive encephalopathy, it may be a persistent intolerable headache. Dizziness, blurred vision, sweating, and stiffness of the neck to the point of difficulty or inability to lower the head may also accompany headaches caused by high blood pressure. If the blood pressure is lowered in time, the symptoms of headache can be relieved or disappear. However, it is important to note that headaches caused by high blood pressure should always be examined by head CT to rule out cerebral hemorrhage caused by high blood pressure, as cerebral hemorrhage can be life-threatening.