In rib fractures with effusion, first, there is significant pain in the thoracic area, especially when breathing deeply or changing position. Secondly, there may be superficial and increased respiration, and there may be purple lips in severe hypoxia. Again, if accompanied by a small amount of pleural effusion, there may not necessarily be any other typical manifestations other than chest wall pain. In addition, in case of multiple multi-segment rib fractures forming a shackled chest, the thorax has abnormal breathing performance, i.e., the thorax is sunken during exhalation and convex during exhalation. This is accompanied by a large amount of pleural effusion and fullness of the affected side of the thorax, accompanied by severe dyspnea and labored breathing, even affecting the circulatory system leading to mediastinal oscillation. In addition, because of excessive blood loss, there are also manifestations of hemorrhagic shock such as pale skin, cold sweat and reduced blood pressure. Fracture and pleural effusion can be accurately determined by CT of the lung and 3D reconstruction of the rib cage, and for a large amount of pleural effusion, timely drainage or open chest is needed to stop the bleeding.