A rib fracture that injures the lung can cause a pneumothorax or hemopneumothorax, which is mainly characterized by chest pain and chest tightness and compression. If the lung compression is not particularly obvious and the symptoms are not particularly serious, the main symptom is chest tightness and shortness of breath, which is more obvious especially during activities. If the pneumothorax compresses more than 1/3 of the lungs it will cause dyspnea and purple lips, mainly when inhaling this symptom will be more obvious. Some patients may also cough up blood, mildly with blood in the sputum, and if the large blood vessels in the lungs are damaged, coughing up blood in large gulps may occur. If there is a lot of bleeding, it may cause rapid heart rate and shortness of breath. If it causes tension pneumothorax, it will also show the deviation of the trachea and chest organs, which will affect the blood circulation and cause the blood pressure to decrease. Therefore, ribs that injure the lungs are still more serious and require hospitalization in the thoracic surgery department.