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Concussion

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A concussion is a type of traumatic brain injury—or TBI—caused by a bump, blow, or jolt to the head or by a hit to the body that causes the head and brain to move rapidly back and forth.

This sudden movement can cause the brain to bounce around or twist in the skull, creating chemical changes in the brain and sometimes stretching and damaging brain cells. These changes in the brain lead to symptoms that may affect how a person thinks, learns, feels, acts, and sleeps.

Healthcare providers may describe a concussion as a “mild” brain injury because concussions are usually not life-threatening. Even so, the effects of a concussion can be serious.

concussion

Observable Signs of a Concussion

  • Can’t recall events prior to or after a hit or fall.
  • Appears dazed or stunned.
  • Forgets an instruction, is confused about an assignment or position, or is unsure of the game, score, or opponent.
  • Moves clumsily.
  • Answers questions slowly.
  • Loses consciousness (even briefly).
  • Shows mood, behavior, or personality changes.

Reported Symptoms of Concussion

  • Headache or “pressure” in head.
  • Nausea or vomiting.
  • Balance problems or dizziness, or double or blurry vision.
  • Bothered by light or noise.
  • Feeling sluggish, hazy, foggy, or groggy.
  • Confusion, or concentration or memory problems.
  • Just not “feeling right,” or “feeling down”.

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.

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