Common symptoms: temporary coma, headache, dizziness, retrograde amnesia, nausea and vomiting
1. Disturbance of consciousness: the degree is lighter and time is short, can be as short as a few seconds or a few minutes, but not more than half an hour.
2. Recent Amnesia: after waking up to the injury at the time of the situation and injury can not recall, but the event before the injury can be clearly recalled.
3. Other symptoms: headache, dizziness, nausea, anorexia, vomiting, tinnitus, insomnia, photophobia, inattention and slow reaction and other symptoms.
4. Neurological examination has no positive signs.
Account not verified