The causes of right sternal pain are as follows: 1, local trauma: for example, landing on the chest during a fall, or foreign object impact, can lead to chest wall contusions, which will manifest as pain in the sternum and local soft tissues in the injured area. 2, clavicular arthritis: may be due to previous trauma caused by foreign body entry, latent infection of the clavicular joint, when the body’s resistance is poor, clavicular arthritis will attack, manifesting as 3.Sternal periostitis: It may be caused by trauma to the sternal fracture, and after the fracture heals deformed there will be irritation of the periosteum, and the proliferating bone may compress its outer periosteum, causing inflammation of the periosteum, which manifests as pain on the surface of the sternum.