When magnetic resonance examination, it is found that there are multiple ischemic foci in the patient’s brain, which is an alteration in imaging. The reason for the formation of multiple ischemic foci is mainly because the capillaries in the patient’s brain are in the state of atherosclerosis, and the slow cerebral blood flow or when the cerebral blood flow is impassable, it will lead to chronic ischemic and hypoxic changes of the local brain tissues and brain cells, which will lead to the formation of multiple ischemic foci. Multiple ischemic foci usually do not lead to acute neurological deficits, but may manifest as chronic dizziness, drowsiness and headache. However, multiple ischemic foci suggest that there is serious atherosclerosis in the small blood vessels in the brain, and patients should take anti-platelet aggregation and lipid-lowering drugs to improve cerebral atherosclerosis, and patients should take aspirin and atorvastatin calcium tablets orally.