The symptoms that can occur with a hindbrain injury are determined by the severity of the injury. If the external force sustained was not severe and did not result in intracranial hemorrhage, the patient may have no obvious symptoms or only mild headache, dizziness, nausea, and no obvious vomiting symptoms. Patients may have a scalp hematoma in combination, which is manifested as a large bag on the scalp, accompanied by pressure pain. If the external force is heavy, it may lead to intracranial hemorrhage. If the amount of hemorrhage is small, the patient’s consciousness may remain clear, but there will be more obvious symptoms such as nausea and vomiting, etc. If the amount of hemorrhage is large, the patient may become unconscious, showing coma, or even pupil dilatation, loss of light response, brain herniation, and emergency craniotomy is needed.