TBI and Concussion Signs & Symptoms

  • One pupil larger than the other
  • Drowsiness or inability to wake up
  • A headache that gets worse and does not go away
  • Slurred speech, weakness, numbness, or decreased coordination
  • Repeated vomiting or nausea, convulsions or seizures (shaking or twitching)
  • Unusual behavior, increased confusion, restlessness, or agitation
  • Loss of consciousness (passed out/knocked out)
  • Even a brief loss of consciousness should be taken seriously

Dangerous Signs & Symptoms in Toddlers and Infants

  • Any of the signs and symptoms listed above
  • Will not stop crying and cannot be consoled
  • Will not nurse or eat

Signs and symptoms generally show up soon after the injury. However, you may not know how serious the injury is at first and some symptoms may not show up for hours or days. For example, in the first few minutes the injured person may be confused or a bit dazed, but an hour later they may not remember how he or she got hurt.

It is important to check for signs of concussion right after the injury and to monitor the injured person for a few days after the injury. If the concussion signs or symptoms get worse, you should seek emergency treatment without delay.