The right clavicle is enlarged and protruding, and the following reasons are common: First, the fracture of clavicle is not fixed in time, or re-displaced after fixation, which can lead to localized enlargement with protrusion. X-ray filming will reveal that the fracture is angular deformity, or even fracture of the internal fixation, which needs to be repaired by surgical treatment. Secondly, the distal end of right clavicle and acromion form acromioclavicular joint, if the distal end of clavicle is cocked with localized swelling after trauma, it means acromioclavicular joint is dislocated, and X-ray film can find that the acromioclavicular joint has lost its relationship. After corresponding diagnosis, the cause of the disease can be confirmed, and treatment according to the cause of the disease can quickly make the clavicle enlargement and protrusion be removed.