According to the Mayo Clinic, the most common causes of traumatic brain injuries include:
Falls: This is the leading cause of TBI overall, and particularly among older adults and children. CDC states that falls accounted for 48% of all TBI-related emergency room visits in a recent year.
Motor vehicle collisions: Car accidents, motorcycle accidents, bicycle accidents, and pedestrian accidents are all leading causes of traumatic brain injury.
Violence: Domestic violence, gunshot wounds, assaults, and other acts of violence are a common cause of TBI.
Sports injuries: Traumatic brain injuries are not uncommon, particularly among youth, in high-impact or extreme sports, including football, soccer, boxing, baseball, hockey, skateboarding, and lacrosse.