Owing to the frequent occurrence of minor head injuries in their daily practice, pediatricians and primary care physicians have a constant concern about their management. Evaluation of a neurotraumatised children must take account of the epidemiological, anatomical, pathophysiological and clinical specificity of each age class. Recent publications of the American Academy of Pediatric, with evidence based medicine review of the literature and experts consensus have permitted to define precise guidelines for the management of children over and below 2 years of age. Taking account in the initial evaluation of the indirect signs of severity and pediatric mechanisms criteria allows to better define the principles of triage.