A sports-related concussion usually involves a blow to the head either directly or indirectly. The following are common signs and symptoms of sports-related concussions:

1. Signs (observed by others):
   • Loss of consciousness (any duration)
   • Nausea or vomiting
   • Athlete appears dazed or stunned
   • Confusion (about assignment, plays, etc.)
   • Forgets plays
   • Unsure about game, score, opponent
   • Moves clumsily (altered coordination)
   • Balance problems
   • Personality/or behavior changes
   • Responds slowly to questions
   • Forgets events prior to hit
   • Forgets events after hit
2. Symptoms (reported by athlete):
   • Headache
   • Fatigue
   • Nausea or vomiting
   • Double vision, blurry vision
   • Sensitive to light or noise
   • Feels sluggish
   • Feels foggy
   • Problems concentrating
   • Problems remembering

These signs and symptoms are indicative of probable concussion. Other causes for any of these signs/symptoms should also be considered.