Concussion Danger Signs

In rare cases, a dangerous collection of blood (hematoma) may form on the brain after a bump, blow, or jolt to the head or body that may squeeze the brain against the skull. Call 9-1-1 right away, or take your child or teen to the emergency department if he or she has one or more of the following danger signs after a bump, blow, or jolt to the head or body:

Dangerous Signs & Symptoms of a Concussion
  • 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 of a Concussion for Toddlers and Infants
  • Any of the signs and symptoms listed in the Danger Signs & Symptoms of a Concussion list.
  • Will not stop crying and cannot be consoled.
  • Will not nurse or eat.

HEADS UP Video: Concussion Danger Signs

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