The pain level of a rib fracture is also differentiated according to the degree of the fracture. For a mild rib fracture or a mild rib fracture, there should be a constant dull pain, which is often present at the fracture site, but may also disperse outward to the local tissues, when the fracture site is red and swollen in addition to pain. In addition to pain, there may be redness and swelling at the fracture site. If the fracture is severe or comminuted, the pain is higher because in addition to the fracture, the surrounding tissues are usually damaged, which can injure the nerves and blood vessels, resulting in unbearable pain, usually accompanied by bleeding and other symptoms, so the patient should go to the hospital for internal fixation and hemostatic sutures to prevent local infection. If infection is caused by poor treatment, the pain will be more intense. In addition, when the displacement of rib fracture is large, causing damage to the surrounding organs or piercing into the organs, there will be unbearable pain or severe pain, and in serious cases, it will lead to pneumothorax, causing respiratory dysfunction, in addition to pain, there will be chest tightness, dizziness, lack of oxygen, cyanosis, and the pain is unbearable at this time, usually need to use strong painkillers to stop the pain.