The chest wall is directly impacted by violence or squeezed chest wall, not enough to fracture the ribs, or due to the uncoordinated force of both hands when carrying heavy objects and cause the chest wall muscles, fascia, intercostal nerves, blood vessels, etc. pulling damage and cause local swelling, pain, etc. resulting in chest wall soft tissue, periosteum injury, called chest contusion. Progressive hemothorax due to laceration of organ tissues is the main cause of rapid progression of injury and patient death. Thoracic contusion is a manifestation of chest injury. Blunt chest contusions are caused by deceleration, crushing, impact or shock violence, with complex injury mechanisms, mostly rib or sternal fractures, often combined with other parts of the injury, and are easily misdiagnosed or missed in the early post-injury period, with blunt contusions and contusions being the most common organ tissue injuries, and tissue edema secondary to extensive blunt contusions of cardiopulmonary tissue often leading to acute respiratory distress syndrome, heart failure and arrhythmias. Most patients with blunt injuries do not require open-heart surgery. Penetrating chest injury penetrating chest injury by firearms, edged weapons or sharp instruments, the mechanism of injury is clearer, the extent of injury directly related to the injury tract, early diagnosis is easier, the progressive hemothorax due to organ tissue laceration is the main reason for the rapid progression of the injury, patient death, a considerable number of penetrating chest injury patients need open-chest surgery. Thoracic contusion is a kind of injury caused by the soft tissue of the chest under the action of external force, more common, commonly in the human body in sports, touching, hitting on hard objects, or by fist and stick, resulting in soft tissue of the chest wall, periosteum injury. For example, when the chest is held from behind with excessive force, it will be strangulated, no bruising on the surface, but it hurts to lie down, which is a soft tissue contusion, a kind of chest contusion. The lighter ones only have soft tissue contusions of the chest wall or (and) simple rib fractures, the heavier ones are mostly accompanied by damage 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.