The symptoms of a rib fracture in the chest include the following: first, pain, which is some of the most common and important symptoms, may be stabbing or sharp pain, often aggravated by coughing, breathing, and activity, and can be slightly reduced at rest. It usually takes two weeks for the pain to be relieved. Secondly, local swelling may occur because the fracture will bleed locally and the blood cannot run to other places due to the encapsulation of the periosteum, and local swelling will occur at this time. Third, local pressure pain and percussion pain may occur. After the fracture, the fracture is unstable, and when pressing or tapping, it will stimulate the fracture end and the periosteum, thus causing pain. Fourth, there may be some symptoms of intercostal nerve injury because the rib fracture will stimulate the rib nerve and cause radiating pain in the rib nerve. There may also be some other symptoms, such as possible puncture of the pleura or even the lung and the appearance of a pneumothorax. Be very careful, even infection of the lung or chest is also possible.