If costochondritis is not treated promptly and effectively, it may cause bone marrow edema. Costochondritis is a common disease, which is divided into non-specific costochondritis, infectious costochondritis and so on. 1. Non-specific costochondritis: It produces some inflammatory cytokines, which stimulate the surrounding tissues and lead to the exudation of some fluids, thus causing localized swelling. 2. Infectious chondritis: mild damage to the soft tissues of the rib cage may cause increased permeability of the local blood vessels, leading to increased tissue fluid, resulting in symptoms of edema, and stimulation of the intercostal nerves causing severe local pain. Costal chondritis should cause patients to pay attention to the appearance of rib pain and other symptoms, should be the first time to the hospital, through ultrasound, CT and other tests to clarify the cause of the disease, and under the guidance of a professional doctor for treatment. In the course of treatment, pay attention to personal care, pay attention to warmth, more rest, to ensure that the condition is effectively controlled.