The long bone between the two chests is called the sternum. It is divided from top to bottom into three parts: sternal stalk, sternal body and saber. It is connected to the rib cage in the form of joints on both sides and forms the front part of the thorax. There are many clinical diseases that cause sternal pain. The most common ones are probably the following: 1. Trauma, consider whether the patient has a fracture or soft tissue contusion of the sternum, mostly seen in direct violence. There is also a portion of patients with severe chest pain after cardiopulmonary resuscitation, which may be a side injury to the sternum during cardiac compressions. 2, esophageal reflux gastritis, which is also clinically very prone to pain in the posterior sternal region with a burning sensation. There are also tumors of the chest, mediastinal emphysema, and coronary heart disease episodes that can also present with pain in the sternal region. Treatment of pain in the sternal region should be based on the specific condition in the relevant departments of the hospital, and only after a clear diagnosis can symptomatic treatment be given.