The posterior scapular pain may be caused by the following reasons: 1, there may be muscle spasm here, such as prolonged sitting and standing with head down, excessive fatigue, and cold, then it may cause the muscles around the scapula, such as supraspinatus, infraspinatus, latissimus dorsi, rhomboid, trapezius, etc. to produce spasm, and then cause the pain here. 2, it may be caused by old injury, such as If there is a previous old fracture of the scapula, the soreness may remain after recovery, and it may increase when the weather changes. 3.It may be caused by the compression of peripheral nerves, for example, if there is compression of the supraspinatus and infraspinatus nerves around the scapular gland, the soreness may also appear. 4.It may also be caused by osteoporosis. In patients with osteoporosis, there may be bony soreness here as well as in the spine, pelvis, lower extremities and other parts.