There is a bone protruding in the middle of the chest, which may be congenital developmental deformity, traumatic fracture displacement, and local lesions such as bony masses or soft tissue masses. You can go to the hospital in time to find a doctor’s consultation, the doctor combined with the examination of the initial judgment. Whether to push the protrusion, can move, etc., help to determine the origin of bone or soft tissue. If you consider skeletal lesions, you can improve the local CT and three-dimensional reconstruction of bones to help determine the condition. If the protrusion belongs to congenital developmental deformity and has no obvious effect on function, no special treatment can be done, and follow-up observation is sufficient. If it belongs to skeletal tumor, surgical resection can be considered, and routine pathological examination can be performed after surgery to clarify the nature of the tumor.