A concussion is a type of traumatic brain injury (TBI) that affects your brain function. Effects can be temporary and can include headaches, concentration difficulties, memory issues including short-term memory loss, balance and coordination.
Concussions are usually caused by force or trauma to the head, such as a blow to the head from a fall. Violently shaking of the head and upper body, such as in a motor-vehicle collision, can also cause concussions.
Some concussions cause you to lose consciousness, but most do not.
Falls are the most common cause of concussion. Concussions are also common if you play a contact sport, such as football or soccer. Most people usually recover fully after a concussion.
The signs and symptoms of a concussion can be subtle and may not show up immediately. Symptoms can last for days, weeks or even longer. Symptoms of a concussion may include:
- Ringing in the ears
- Fatigue or drowsiness
- Blurry vision
- Confusion or feeling as if in a fog
- Loss of memory of the concussion event
- Dizziness or "seeing stars"
- Temporary loss of consciousness (though this doesn't always occur)
- Slurred speech
- Delayed response to questions
- Dazed appearance
Some symptoms may occur immediatley while other symptoms may occur several days after the injury. These symptons can include:
- Concentration and memory complaints
- Irritability and other personality changes
- Sensitivity to light and noise
- Sleep disturbances
- Psychological adjustment problems and depression
- Disorders of taste and smell
Sports Related Concussions
General Concussion Information