Concussion or major brain injury can occur from an impact that jars or violently shakes the delicate brain inside the skull. Most concussions do not involve loss of consciousness. Injury to the brain starts with the impact and continues for up to 72 hours.
When to Seek Immediate Medical Attention
If any of the following symptoms are present, call 911 or go to the Emergency Department right away.
- Loss of consciousness
- Severe or increasing neck pain
- Increasing confusion
- Increasing irritability
- Seizure or convulsion
- Weakness in arms or legs
- Tingling or burning in arms or legs
- Deteriorating consciousness
- Severe or increasing headache
- Unusual behavior change
- Double vision
- One pupil larger than the other
Visit the Save the Brain page
to learn more about concussion, signs and symptoms, and steps for recovery.