Diagnosis】 1. There is a history of violent extrusion of hard objects against the chest wall or in the anterior and posterior directions of the thorax. 2.There is chest pain, and the pain is aggravated by coughing and deep breathing. In severe cases, there are symptoms such as hemoptysis, shortness of breath, dyspnea, cyanosis, and even shock. Bai Xiaohong, Department of Cardiothoracic Surgery, Datong Third People’s Hospital 3. There is pressure pain, bone rubbing sound or bone rubbing sensation at the fracture part, and in case of multiple multiple rib fractures, the chest wall in the fracture area collapses and paradoxical breathing occurs. 4, Chest x-ray can show the number, location and shape of rib fractures. If it is accompanied by severe lung contusion, chest X-ray shows diffuse infiltrative shadow in the lung. Treatment】 1.If there is shock, tension pneumothorax or severe hemothorax, emergency treatment such as anti-shock, thoracentesis or closed drainage decompression should be performed immediately. 2.Correct chest wall depression, eliminate or reduce paradoxical breathing, and promote pulmonary resuscitation. Commonly used methods are: ① most cases can be used in the external fixation method of cotton pads with pressure. ② Floating injured rib suspension traction. ③ External fixation traction of the chest wall. ④ endotracheal chest wall fixation, that is, endotracheal intubation, ventilator to maintain artificial ventilation, for severe chest trauma, combined with floating chest wall, it is recommended to perform rib fracture incision and internal fixation. 3.Encourage the casualty to cough, perform endotracheal suction or tracheotomy to remove respiratory secretions and blood obstruction to prevent asphyxia and airway obstruction. 4.Treat combined injuries such as pneumothorax, hemothorax, etc.