In frontal lobe ischemic foci, most patients do not have any clinical signs and symptoms, and if patients present with symptoms they mainly present with psychiatric symptoms and may also present with seizures. The patient usually occurs in middle-aged and elderly people over 50 years old. The patient may have a history of atherosclerosis, hyperlipidemia, diabetes mellitus, hyperhomocysteinemia and hypertension, and should be examined for neck vascular ultrasound, lipids, blood glucose, homocysteine and blood pressure, etc. if necessary. If the patient has a vascular malformation, severe vascular stenosis is also likely to cause, cranial magnetic angiography should be examined to clarify whether there are large intracranial vascular lesions, including vascular stenosis and the degree of stenosis. Also patients are prone to it if they have vasculitis, and if they have ischemic foci, the risk of cerebral infarction will be significantly increased. Oral aspirin anti-platelet aggregation therapy can be administered while controlling the cause of the patient’s disease.