Concussion is a traumatic injury to the brain.
Brain functions are impaired due to injury.
The most common causes of concussions are head injuries, blows, injuries, falls. Concussions are common in contact sports.
When to see a doctor
See a doctor within 1 to 2 days if you or your child experiences a head injury, even if emergency care isn't required.
If your child doesn't have signs of a serious head injury, remains alert, moves normally and responds to you, the injury is probably mild and usually doesn't need further testing. In this case, if your child wants to nap, it's OK to let him or her sleep. If worrisome signs develop later, seek emergency care.
Seek emergency care for an adult or child who experiences a head injury and signs and symptoms such as:
- Repeated vomiting or nausea
- A loss of consciousness lasting longer than 30 seconds
- A headache that gets worse over time
- Fluid or blood draining from the nose or ears
- Vision or eye disturbances, such as pupils that are bigger than normal (dilated pupils) or pupils of unequal sizes
- Ringing in the ears that doesn't go away
- Weakness in the arms or legs
- Changes in behavior
- Appearing very pale
- Confusion or disorientation
- Slurred speech or other changes in speech
- Obvious difficulty with mental function or physical coordination
- Seizures or convulsions
- Lasting or recurrent dizziness
Source:
https://www.mayoclinic.org/diseases-conditions/concussion/symptoms-causes/syc-
20355594
