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Symptoms (and Signs) of Concussion or Traumatic Brain Injury

A person with a mild concussion or traumatic brain injury may experience:

  • Headache
  • Confusion
  • Lightheadedness
  • Dizziness
  • Blurred vision
  • Ringing in the ears
  • Tiredness or sleepiness
  • A bad taste in the mouth
  • A change in sleep habits
  • Behavior or mood changes
  • Trouble with memory, concentration, attention, or thinking
  • Loss of consciousness lasting a few seconds to minutes
  • Sensitivity to light or sound
  • Nausea or vomiting

A person with moderate or severe concussion or traumatic brain injury may have some of the following symptoms in addition to those listed above:

  • Headache that gets worse or won't go away
  • Repeated vomiting or nausea
  • Slurred speech
  • Convulsions or seizures
  • An inability to wake up from sleep
  • Enlargement of the pupil (dark center) of one or both eyes
  • Numbness or tingling of arms or legs
  • Loss of coordination
  • Increased confusion, restlessness, or agitation
  • Loss of consciousness lasting a few minutes to hours

A person who suffers a blow to the head or another trauma that may have caused a TBI should seek medical attention.

Sources

Eunice Kennedy Shriver National Institute of Child Health and Human Development
Brainline.org