The causes of sternal shank pressure pain are as follows: First, trauma or impact of foreign objects: it can cause contusion of the soft tissue in front of the sternal shank, which is manifested as pressure pain and soreness in the sternal shank area and adjacent areas. Second, local bone growth of the sternal pedicle: It may be due to the fracture of the sternal pedicle occurred in the past due to trauma, poor alignment and alignment of the fracture, local bone growth will occur during the healing process, and the growth of bone will produce pressure on the skin and soft tissues covered by it, which will easily cause local pain. Third, joint degeneration: It may be caused by the degeneration of the joint between the sternal stem and the sternal body, that is, the sternal horn. When the joint degenerates, it will easily cause local bone growth and joint degeneration, so it will also cause local pain.