Protruding ribs in the chest are usually considered for several conditions such as energy deprivation, calcium deficiency, obstructive lung disease or bone damage. 1. Tumors, tuberculosis, diabetes, etc. cause energy deficiency in the body, subcutaneous fat is too thin, and the chest consumes muscles to supply normal demand, which leads to the obvious protrusion of ribs. 2. When there is a lack of calcium in the body, the ribs develop abnormally, such as rickets and scoliosis. 3. In patients with chronic obstructive pulmonary disease (COPD), the presence of persistent cough and infection can lead to protruding ribs causing chest deformities. 4. If there is a history of trauma, resulting in rib fractures, rib ectopia, osteophytes and other old injuries, may cause rib protrusion. Due to the various causes of rib protrusion symptoms, when it significantly affects normal life, timely medical treatment should be sought, and if necessary, surgical treatment should be considered for improvement.