Patients with cerebral infarction will experience memory loss, 1. Most often seen in large cerebral infarction, such as when considering temporal lobe or frontal lobe infarction may also occur. In patients with large cerebral infarction, most of the symptoms are severe. There may also be impaired consciousness, which can be manifested as blurred consciousness, delirium state, or coma as well as lethargy, somnolence, vegetative state, etc. 2. If the patient is frontal lobe or temporal lobe infarcted, there can be memory loss, and there may also be intellectual disability. Some patients can show psychiatric symptoms and may also have seizures, cranial CT or cranial nuclear magnetic examination can make a clear diagnosis.3. If the memory impairment is serious, it is necessary to apply drugs to improve cerebral metabolism to treat it, commonly used ones are olanzapine, piracetam, and cytarabine, and to actively treat the primary disease.