The most common cause of sternal periostitis is due to nonspecific periostitis, a condition that can be caused by trauma, trauma, strain, or by minor infections, including viral infections or other irritations, causing localized inflammation of the anterior chest and periosteum, including the sternum and ribs, resulting in periostitis that is usually painful and may also be locally swollen. It is most common in ribs 2-4 and more common in women, especially at the junction of the 2nd rib cartilage and the sternum, where there is swelling and pain. Another type of sternitis is infective periostitis, which can be caused by bacterial infection after trauma, fracture, or other infections, including tuberculosis infection or other causes, such as pulmonary disease, etc. In this case, in addition to pain and swelling, there is usually coughing and coughing, local redness, heat, swelling, and even destruction, resulting in dead bone, which requires symptomatic anti-infective treatment. In severe cases, surgical removal is also required.