Approximately one million people in the United States are treated for a traumatic brain injury (TBI) each year, and an estimated 5.3 million people live with a TBI-related disability. Motor vehicle accidents are a leading cause of TBI, particularly when cars strike pedestrians. Unlike broken bones or cuts, traumatic brain injuries may be permanent.
What Is a Traumatic Brain Injury?
A traumatic brain injury is most often caused by a blow or jolt to the head. An object that penetrates the brain tissue can also cause a TBI.