The chest wall is directly hit by violence or squeezed chest wall, not enough to fracture the ribs, or due to lifting heavy objects with uncoordinated force of both hands and cause the chest wall muscles, fascia, intercostal nerves, blood vessels and other pulling damage, resulting in local swelling, pain and other injuries to the chest wall soft tissue, periosteum, called chest contusion. So how to diagnose thoracic contusion? The following is the method of diagnosing chest contusion: the local signs of chest contusion vary according to the nature of the injury and the severity of the injury, and may include chest wall contusion, thoracic deformity, abnormal respiratory movements, subcutaneous emphysema, local pressure pain, bone friction sounds and trachea, heart displacement signs. Percussion of the chest: bulbous sounds for air accumulation and turbid sounds for blood accumulation. Auscultation: decreased or absent breath sounds, or sputum sounds and rales can be heard. Chest injury, generally according to whether or not to penetrate the full chest wall, including the pleura, resulting in pleural cavity and external communication, and is divided into closed and open two categories. Closed injuries are mostly caused by violent crushing, punching, or blunt object striking the chest. The lighter ones only have soft tissue contusions of the chest wall or (and) simple rib fractures, while the heavier ones are mostly accompanied by injury to organs or blood vessels in the pleural cavity, resulting in pneumothorax, hemothorax, and sometimes also causing contusions and lacerations of the heart and bleeding in the pericardial cavity. Very violent compression of the chest. Conduction to the venous system, but also can force a sudden increase in venous pressure, resulting in the head, neck, shoulder, chest capillary rupture, causing traumatic asphyxia. In addition, high-pressure air and water waves impacting the chest can also cause pulmonary shock injury. Open injuries, usually due to sharpshooter cone. War time is caused by firearms shrapnel and other penetration of the chest wall, such as into the pleural cavity, can lead to open pneumothorax or (and) hemothorax, affecting respiratory and circulatory function. The injury is more serious. Closed or open chest injuries, whether the diaphragm is punctured or not, may simultaneously injure the abdominal organs. Such multiple injuries involving both the thoracic and abdominal joints are collectively referred to as combined thoracoabdominal injuries. After listening to the above introduction on how to quickly identify chest contusions, you should know something about this issue, and friends who have suffered from cardiovascular disease requiring long-term medication should pay more attention.