What is a concussion?
A concussion is a traumatic brain injury that affects your brain function. Effects are usually temporary but can include headaches and problems with concentration, memory, balance and coordination.
Concussions are usually caused by a blow to the head. Violently shaking of the head and upper body also can cause concussions.
Some concussions cause you to lose consciousness, but most do not.
What are some symptoms of a concussion?
The signs may include the following:
- memory problems
- confusion
- drowsiness or feeling sluggish
- dizziness
- double vision or blurred vision
- headache
- nausea or vomiting
- sensitivity to light or noise
- balance problems
- slowed reaction to stimuli
The symptoms may begin immediately, or they may not develop for hours, days, weeks, or even months following your injury.