Suspected of having a chest contusion and do not know what tests should be done I believe that many people are troubled, in order to help alleviate the worry, the following is to introduce you to the chest contusion need to do what tests. Local severe pain, finger touch the affected area, can touch the rib membrane thick blunt or linear peeling, intercostal space muscle tight, sometimes can touch a rolling strip of intercostal muscle muscle fiber peeling, pressure pain obvious. Chest wall soft tissue injury refers to the chest wall of the skin, subcutaneous tissue, pectoral muscle and intercostal tissues in the role of external forces caused by mechanical injury, accounting for 40% to 60% of chest injuries. Superficial soft tissue injuries such as abrasions and contusions are generally of no clinical importance, but if extensive contusions or penetrating injuries occur, they can have serious effects. Chest wall soft tissue injuries are divided into open and closed according to the presence or absence of skin rupture. Open injuries are divided into penetrating and non-penetrating injuries depending on whether the chest wall wound communicates with the pleural cavity or with the mediastinum. In severe cases, it can cause respiratory and circulatory dysfunction, which can lead to rapid death if not treated timely and effectively. CT examination of the chest: CT examination of the chest is a method of examining the chest by X-ray computed tomography (CT). Chest wall examination can find asbestosis with pleural thickening which cannot be shown on chest film; when pleural effusion is found, if small pleural nodule or mass is found, it can help the diagnosis of metastasis and mesothelioma; according to the CT value of pleural mass, it can identify encapsulated effusion, limited mesothelioma and extrapleural lipoma; with the help of CT enhancement, it can diagnose angiomas of the chest wall; and it can well show fracture of the rib cage and destruction of rib cage. Routine blood test: Blood test is to detect and analyze the quantity and quality of three systems of blood, namely red blood cells, white blood cells and platelets. These three systems, together with plasma, make up the blood, which flows continuously through the body’s circulatory system and participates in the body’s metabolism and every functional activity. Therefore, the blood plays an important role in ensuring the metabolism of the body, the regulation of its functions, and the balance of the internal and external environments of the body. Pathological changes in any of the formed components of the blood will affect tissues and organs throughout the body; conversely, lesions in tissues or organs can cause changes in blood components, thus hematological analysis and its results are of great help in understanding the severity of the disease.