Trauma in the United States is the leading cause of death and disability in the pediatric population. Differences of age and development affect recovery and outcome following head injury. Mechanisms and pathophysiology of head injury are varied in both the pediatric and adult populations. Assessments of injury are varied and some measurements are more sensitive than others as well as more specific with regard to certain types of injury. Treatment and management should be tailored to each case in order to effect a positive outcome with respect to brain functioning. Aggressive intervention for prevention of primary and secondary injury must be continued and understanding of the impact of these injuries should provide for a brighter future for these patients.