Most common traumatic thoracic injury is rib fracture. Rib fracture requires major transfer of energy on patient and alerts threating physician to search for occult injuries. Considering that bony thorax envelops and protects structures of the root of the neck, intrathoracic and intraabdominal organs, injuries sustained during rib fractures can be extensive. Extenssiveness of injuries is the rule and it is the reason why thoracic trauma is on the second place as a cause of mortality among trauma patients (traumatic brain injury is a cause number one). In general, trauma is a number one cause of mortality among 1-44 age group. Besides intrathoracic injuries, patient sustaining injuries to the first three ribs can have injuries to the structures of the root of the neck (eg. Laceration of neurovascular structures with bony fragment). Fractures of fourth, fifth and sixth rib injures lungs (laceration and contusion), and in cases of immense transfer of energy heart and great vessels, diaphragm and oesophagus. Rib fractures lower than sixt rib can injure intraabdominal organs as well (liver, spleen, kidney). Management of patient with rib fracture is usually conservative. For positive outcome it is very important to provide adequate analgesia in order to properly ventilate lungs and remove secretions from the airways. If that measures are not enough, through bronchoscopy can the airways be cleaned. Mechanical ventilation is considered in patients who develop respiratory insufficiency, which should be avoided by above measures. Most frequent complication of rib fracture is pneumonia which is responsible for great part of deads after thoracic trauma.