Healing or recovering from a concussion takes time. It may take days to weeks, or even months. During that time you may:

Be withdrawn, easily upset, or confused

Have a hard time with tasks that require memory or concentration

Have mild headaches

Be less tolerant of noise

Be very tired

Feel dizzy

Have blurry vision at times

These problems will probably recover slowly. You may want to get help from family or friends for making important decisions.

In a small number of people, symptoms of the concussion do not go away. The risk for these long-term changes in the brain is higher after more than one concussion.

Seizures may occur after more severe head injuries. You or your child may need to take anti-seizure medicines for a period of time.

More severe traumatic brain injuries may result in many brain and nervous system problems.