If symptoms of a<unk><unk>  are seen after an accident, medical care is necessary to diagnose and treat the<unk> . Without medical attention,<unk> es can progress and cause further brain damage, disability, or death. Common symptoms Because the brain swelling that produces these symptoms is often a slow process, these symptoms may not surface for days to weeks after the<unk> . Common symptoms of a<unk>  include: *headache *dizziness *nausea *vomiting *slurred speech Severe<unk>  symptoms Severe<unk> <unk> es can lead to permanent vegetative states or death, therefore being able to recognize symptoms and get medical attention is very important. Symptoms of a severe<unk>  include: *coma or vegetative states *seizures or convulsions *loss of consciousness Secondary symptoms Secondary symptoms are symptoms that surface during rehabilitation from the<unk>  including social competence issues, depression, personality changes, cognitive disabilities, anxiety, and changes in sensory perception. More than 50% of patients who suffer from a traumatic brain<unk>  will develop psychiatric disturbances. Although precise rates of anxiety after brain<unk>  are unknown, a 30-year follow-up study of 60 patients found 8.3% of patients developed a panic disorder, 1.7% developed an anxiety disorder, and 8.3% developed a specific phobia. Patients recovering from a<unk> -head or traumatic brain<unk>  often suffer from decreased self-esteem and depression. This effect is often attributed to difficulties re-entering society and frustration with the rehabilitation process. Patients who have suffered<unk> <unk> es also show higher levels of unemployment, which can lead to the development of secondary symptoms.
Closed-head injury
Penetrating head injury
Traumatic asphyxia
Blast injury
Traumatic brain injury
Acquired brain injury
Barotrauma
Head injury