The diagnosis of rib fracture is based on history, signs and symptoms, and imaging. Patients with rib fracture have a clear history of trauma, chest pain after the trauma, which is significantly aggravated by deep breathing or coughing, and chest tightness in some patients with pulmonary contusion. On physical examination, localized tenderness is obvious, and some patients can feel bone friction, as well as a positive thoracic compression test. Patients with such symptoms, signs and history of trauma need to undergo further chest radiography, and for patients with insignificant displacement of the fracture, they need to undergo further CT reconstruction of the ribs, which can visualize the morphology of the ribs and the displacement of the fracture, and is more definitive for the diagnosis. Therefore, the diagnosis of rib fracture can be made by history, symptoms, signs and symptoms, and determined by auxiliary examination.