Pectus carinatum

Pectus carinatum, also known as pigeon chest, is a condition where the breastbone (sternum) protrudes outward, creating a bulging appearance of the chest. It occurs when the cartilage connecting the ribs to the sternum grows abnormally, pushing the chest forward. This can sometimes cause discomfort, breathing issues, or affect self-esteem, although many people have no symptoms. The condition is often diagnosed during childhood or adolescence and varies in severity. Treatment options include braces to help reshape the chest or, in more severe cases, surgery to correct the protrusion.