الفهرس 
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Abstract
Head trauma is an important public health problem worldwide. It is a major cause of long-term disability and economic loss to society. Head trauma carries a great risk of insult to the brain, not degenerative or congenital in nature, but caused by an external physical force, that may produce a diminished or altered state of consciousness, resulting in an impairment of cognitive ability or physical functions. Head trauma remains the highest global cause of morbidity and mortality.
Much of the neurological damage resulting from head trauma does not occur immediately but, hours and days that follow. The primary injury is due to irreversible mechanical injury, but the resulting cerebral edema contributes to secondary injury from raised intracranial pressure, hypotension, hypoxia, anaemia, seizures, hypoglycemia and hyperthermia. Therefore, prevention and correct management of these complications improve outcome from head injury, and urgent treatment of head-injured patients is of utmost importance.
A head injury is any sort of injury to brain, skull, or scalp. This can range from a mild bruise to a traumatic brain injury. Common head injuries include concussions, skull fractures, and scalp wounds. The consequences and treatments vary greatly, depending on the cause and severity. Trauma to the brain can cause mass lesions, an area of localized injury such as hematomas and contusions that increase pressure within the brain.
Death after head trauma may be immediate as due to brain laceration. Brain stem death, contusions, and cerebral compression by hemorrhage, or may be late as, infection, epilepsy and associated vital organ and spinal cord injury .