Chest rib joints with bumps may be related to deformity healing caused by trauma, or may be caused by abnormal bone development, rickets and other reasons. 1. Deformity healing caused by trauma: If the chest area is hit or squeezed by external force, it is likely to cause localized fracture, and the deformity healing of the fracture may cause bulging of the thoracic rib joint. 2. Skeletal developmental abnormalities: if there are skeletal developmental abnormalities, such as rib ectropion, chicken chest and other diseases, may lead to the patient’s chest and rib joints have bulging. 3. Rickets: rickets is caused by a serious lack of vitamin D, resulting in abnormal calcium and phosphorus metabolism, rickets can lead to softening or deformity of bone tissues, and in severe cases, it may cause chest rib joints to have bulging, and may be accompanied by excessive sweating, crying at night and other symptoms. Chest rib joint bulge, may also be caused by other reasons, it is recommended to go to the regular hospital as soon as possible, after clarifying the causes, by the doctor’s guidance for treatment.