The symptoms of dizziness caused by a fall are caused by the following: 1. concussion, concussion is a transient brain dysfunction caused by an external impact on the head, the common clinical symptoms are dizziness, headache, nausea, vomiting, impaired movement of the limbs, etc., which can be restored to normal and is the lightest cranio-cerebral injury and will not leave sequelae. 2. cranio-cerebral injury, including cerebral hemorrhage, epidural hematoma, etc. The main symptoms of brain hemorrhage are headache, nausea, vomiting, and gradually entering coma. The headache is severe headache accompanied by jet-like vomiting, and the typical symptoms of epidural hematoma are coma – awake – coma. Whether it is a brain hemorrhage or subdural hematoma, the condition is serious enough to check the head CT first to exclude cranial lesions and treat them as early as possible, and usually pay more attention when going out to prevent falls.