Traumatic brain injury is sudden, marked, and permanent damage to the head caused by an impact or blow of some sort. The injury which occurs at the time of impact is called the primary injury—the secondary injury results from the malfunctioning of some system or a chemical imbalance in the brain. A common method of treating TBI is to keep the head in a fixed position, such as a rigid skull brace, and prevent any movement during the injury.
Among the most common causes of TBI are as a result of car accidents. Head injuries from such accidents are very common among drivers. Another frequent cause of this type of injury is assault or domestic violence. Other factors to consider are severe head injuries in people engaged in combat sports, throwing heavy objects, or playing contact sports and are exposed to more risks than other people.