Patients are confused after having a brain infarction, the reasons may be the following: 1. There is a relationship with the site of infarction, such as lesions in the temporal lobe and hippocampus, which may easily lead to symptoms such as memory loss and gibberish. After the infarction of the frontal lobe, it will lead to mental changes, and patients will have hallucinations such as hallucinations and hallucinations, which may appear to be confused to bystanders. 2. If the patient is suffering from multiple cerebral infarction, it will lead to the decline of the patient’s brain function, causing the patient to develop vascular dementia, which is manifested by memory loss and cognitive function decline, so there will also be confusion, which is related to the multiple cerebral infarction relationship. Patients with cerebral infarction must actively prevent the recurrence of cerebral infarction in order to avoid vascular dementia, which will affect their daily life.