The main four aspects of rib fracture examination are visualization, touch, percussion, and listening: 1. Visualization is to see if there is any deformity of the thorax, abnormal breathing, or collapse of the thorax; 2. Palpation is to palpate the entire chest wall to see if there is tracheal deviation, subcutaneous emphysema, or twisting pronunciation, and also to see if there is any pressure pain, rib deformity, or rib bone rubbing sensation. There is also the thoracic squeeze test, that is, pressing the thorax with both hands, if the patient feels pain is a positive thoracic squeeze test, it means there is a rib fracture or a sternal fracture, if not, it is not considered a fracture or a sternal fracture. 3, percussion is to percuss the thorax to see if there is any pain, if the percussion thorax is painful at the percussion place or along the rib walk, it should also be considered a rib fracture. 4. Auscultation is mainly to listen to the breathing sounds of the two lungs is symmetrical, there is no weakening or disappearance of breathing sounds, if there is to consider whether the rib fracture caused by hemopneumothorax.