Chest trauma in children is rare but shows that trauma is severe and the mortality rate is high (30%). Multidisciplinary management of children includes an initial evaluation of respiratory distress, freeing the airways, placing an intercostal tube, stabilizing the chest wall, and analgesia. When vital signs are stable, secondary evaluation includes an etiologic, radiologic and biologic check-up, ending with the therapeutic strategy. Thoracotomy is rarely required, and for most children, only monitoring will be necessary, though this is important because of the risk of secondary decompensation and late diagnosis of potentially fatal lesions.