The sternum, also known as the breastbone, is the long, flat bone in the middle of your chest.You can have pain in this area because of infection, inflammation, injury, or the breakdown of cartilage affecting the sternum itself.Problems with nearby organs like the heart, lungs, and esophagus can also cause pain in this area. This includes a heart attack, pleurisy (a lung inflammation), and acid reflux.Usually, if the pain is in the actual sternum, you’ll have sharp pain when you push in the middle of your chest. Читать дальше...