The causes of rib protrusion are commonly the following: 1. local inflammation around the ribs, due to inflammation leading to local bone growth, deformation and protrusion of the ribs, commonly known as costochondritis. 2. visible in rib trauma, due to trauma leading to rib fracture, in the healing of the fracture can also occur in the healing of the fracture deformity, leading to rib protrusion. 3. can be due to rib tumors, relatively rare, can also be due to tumors causing rib protrusion deformity. 4. 4, can be seen in the rib development deformity, due to developmental problems caused by the rib protrusion, such as the common sequelae of rickets, and then there are heart and lung disease caused by the abnormal development of the ribs will also produce rib protrusion.