High blood pressure can lead to headaches because hypertension is a clinical syndrome characterized by increased blood pressure in the arteries of the body circulation with damage to the heart, brain and kidneys important organs. Chronic high blood pressure is a chronic condition that is damaging to the heart, brain, lungs, liver, kidney target organs and blood vessels. With long-term hypertension, increased cerebral perfusion and cerebral vasodilation, patients will have dizziness symptoms and even risk of cerebral hemorrhage, and more sensitive patients will have dizziness and discomfort. It is important to promptly consult a doctor and promptly measure the blood pressure of both upper extremities. If the blood pressure is high while excluding secondary factors and promptly lowering the blood pressure for treatment, the patient will most likely get better. In addition, some patients with hypertension do not have dizziness or headache, but have brain hemorrhage as the first symptom, which may be more troublesome. This is because a large brain hemorrhage is seen in neurology or neurosurgery, but the last detailed investigation is hypertension. Whether it is primary or secondary hypertension, it is relatively troublesome. Hypertension has dizziness and headache, and patients can monitor their blood pressure at home or go to a hypertension clinic for further monitoring. If the blood pressure is indeed high, after excluding secondary factors, the patient should get the appropriate antihypertensive active treatment. Because long-term hypertensive state has damage to target organs such as heart, brain, lung, liver and kidney. Moreover, long-term hypertension can be associated with dizziness, headache, increased cerebral perfusion or the risk of cerebral hemorrhage with particularly high blood pressure.