Traumatic Brain Injuries are defined as damage done to the tissues of the brain by an external force. Such damage can be the result of a blow to the head (such as can occur during a Pennsylvania car accident or fall down accident) or a violent jostling of the head (for instance, a whiplash injury).
There are two types of traumatic brain injury: An “open” head injury and a “closed” head injury. Open head injuries can be identified by superficial wounds; for example. gashes, bruises, lacerations. Closed head injuries have no external signs; these injuries amount to internal bleeding or a swelling of the brain.
A traumatic brain injury can cause permanent disabilities, so it is necessary to seek a medical evaluation if you have in any way hurt your head.