Costochondritis occurs at the costal cartilages, most often at the 2nd and 3rd costal cartilages. The costal cartilage is located at the anterior end of each rib and is composed of hyaline cartilage. Costal chondritis is a non-specific, non-suppurative inflammatory disease that occurs at the costal cartilages, most often in the 2nd and 3rd costal cartilage sections. The main manifestations of costochondritis are localized swelling, pain and tenderness, pain aggravated by chest pressure, breath-holding, deep breathing, coughing or training, X-ray examination of the costochondral cartilage has no special changes, which may be related to strain or trauma. In daily life, attention should be paid to the protection of the rib cartilage, try to avoid long-term weight bearing. Once limited pain and enlargement of the rib cartilage occurs, it is recommended to consult a doctor in time and follow the doctor’s instructions.