Multiple cerebral ischemic foci do not cause an increase in blood pressure. Cerebral ischemic foci are generally chronic lesions in which small arteries in the brain are sclerotic and produce atheromatous plaques, resulting in impaired blood supply to their ends. Chronic ischemia and hypoxia in the area of brain tissue supplied with blood cause demyelination of brain tissue, which results in punctate ischemic foci on magnetic resonance. If such vascular damage is widespread, multiple small ischemic foci in the brain can occur. This disease is usually seen in elderly patients, most of whom have underlying diseases such as hypertension, diabetes mellitus, and hyperlipidemia, i.e., hypertension can lead to multiple ischemic foci in the brain. High blood pressure can lead to atherosclerosis, which is one of the most common risk factors for cerebral infarction. Repeated blood flow washing the blood vessels can damage the vessel walls, causing local atherosclerosis and plaque formation, which in the long run will cause local stenosis of the blood vessels and affect their terminal blood supply.