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Traumatic brain injury occurs when an external force injures the brain.
Such injuries can be caused by the head striking or being struck by something
causing a closed head injury, or an object passing through the skull and
into the brain such as a bullet or other object causing a penetrating
head injury. A major cause of traumatic brain injury is motor vehicle
accidents. Other causes are falls, sports injuries, work accidents, violent
crimes and child abuse.
Symptoms of a closed head injury may include: headache, short or long term
memory loss, slowed ability to process information, trouble concentrating,
difficulty paying attention or keeping up with a conversation, difficulty
with word patterns, spatial disorientation, organizational problems or
impaired judgment, or the inability to do more than one thing at a time.
Other symptoms that may be present are nausea, vomiting, dizziness, blurred
vision, unequal pupil size as well as lethargy or changes in sleep patterns.
Serious injury can alter cerebral blood flow or cause swelling and pressure
in the skull. Suspicion of traumatic brain injury should be checked immediately