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Physical trauma refers to a physical injury, generally of a considerably severe degree. A trauma patient is someone who has suffered serious and life-threatening physical injury with the potential for secondary complications such as shock, respiratory failure and death.

Comprehensive table of injury-related deaths in the United States is found at:

There are a wide variety of symptoms that are associated with physical trauma; for example, unconsciousness, internal bleeding, disorientation, shock, or even death.

Death from trauma often occurs during three different peaks: immediately, early, and late. The immediate deaths are often due to apnea, severe brain or high spinal cord injury, or rupture of the heart or large blood vessels. The early deaths occur within minutes to hours and are often due to a subdural hematoma, epidural hematoma, hemothorax, pneumothorax, ruptured spleen, liver laceration, or pelvic fractures. This is known as the Golden hour. The late deaths occur days or weeks after the injury.

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