For patients in car accidents, if brain hemorrhage occurs, most of them will be manifested in the appearance of obvious consciousness disorder, and the degree of consciousness disorder of some patients will be in a state of progressive aggravation. At the time of injury, the patient may be in a state of drowsiness or lethargy, and with the passage of time, the patient may even be in a state of light coma, medium coma, or even deep coma. In addition, the patient shows obvious symptoms of increased intracranial pressure, such as nausea, vomiting, severe headache, dizziness, and may even suffer from rapid cerebral hemorrhage, large amount of bleeding, and the formation of intracranial hematoma within a short period of time, which causes compression of blood vessels and nerves in the surrounding brain tissues, thus leading to the patient’s obvious symptoms and signs, which may be characterized by aphasia, hemiparesis, and other conditions.