The chest hurts when pressed, usually for the following two reasons: 1. It may be a local aseptic inflammation, usually caused by chronic, or it may be an acute attack, commonly known as thoracic costochondritis, saberitis, etc. There is usually a very obvious pressure pain in the painful local area. In the case of acute inflammation, local redness, swelling, heat and pain, skin flushing and local skin temperature increase may also occur. In addition, the pain may appear when the thorax is moved, such as when breathing hard, coughing or lifting something hard, or the symptoms may worsen on top of the original pain. Usually there is no combination of chest tightness, palpitations, chest crushing pain and other cardiac conditions; 2, caused by trauma, usually there may be accidental bruises, or local soft tissue strains after moving things hard, this situation has a very clear history of trauma.