The protruding right shoulder bone may be related to the following reasons: 1. It may be related to the patient’s habitual posture. Some patients habitually shrug their shoulders to one side, which may cause the bony markings of the intertrochanteric joint to be more prominent. 2. This may be caused by some old trauma. For example, if the right shoulder joint has had some old fractures or dislocations, then after recovery, there may be excessive local osteophytes or scarring, which may be more prominent on the body surface than on the opposite side. 3. 4. This condition may be caused by scoliosis. 5. This condition may also be caused by muscle atrophy on the right side. For example, if the right side of the muscle is very serious injury, or the right side of the upper limb suffered a serious trauma, requiring long-term braking, after the muscle atrophy of this side of the situation, so that this part of the bone looks more prominent.