• Headaches
  • Nausea
  • Vomiting
  • Balance problems
  • Dizziness
  • Visual problems
  • Fatigue
  • Sensitivity to light
  • Sensitivity to noise
  • Numbness or tingling


  • Feeling mentally foggy
  • Feeling slowed down
  • Difficulty concentrating
  • Difficulty remembering
  • Forgetting recent conversations or information
  • Confusion about recent events
  • Slow to answer questions and repeating questions


  • Irritability
  • Sadness
  • Depression
  • Heightened emotions
  • Nervousness
  • Anger


  • Drowsiness or an inability to wake up
  • Sleeping more than usual
  • Sleeping less than usual
  • Trouble falling asleep

Seek medical help immediately if you notice these dangerous signs:

  • Loss of consciousness, even briefly
  • Slurred speech or other changes in speech
  • Weakness, numbness or decreased coordination
  • Seizures, convulsions
  • Vision or eye issues (pupils that are bigger than normal, or pupils of unequal size)
  • Headaches that worsen and won’t go away
  • Lasting or recurring dizziness
  • Repeated vomiting or nausea
  • Obvious difficulty with mental function or with physical coordination
  • Unusual behavior
  • Large bumps or bruises in areas other than the forehead in children, especially infants younger than 12 months

If you have suffered a concussion, you should not return to play (or vigorous activities) on the same day as the injury, or if you still have signs of a concussion. For more information, visit