Shoulder back and back pain can be caused by the following causes: 1, rheumatoid, rheumatoid can involve the entire spine and joints, resulting in shoulder back and back pain, can have morning stiffness, can be accompanied by other small joint pain, swelling symptoms throughout the body. This time to early physical examination, examination of the spine X-ray, CT and blood tests to diagnose; 2, ankylosing spondylitis, ankylosing spondylitis in serious stages can involve the entire spine and sacroiliac joints, shoulder joints, which can lead to shoulder, back and lumbar pain, can be accompanied by morning stiffness and sacroiliac joint, lumbar pain, can involve the entire spine, stiffness. In this case, blood tests, X-rays of the sacroiliac joint, lumbar spine, and spine as well as CT are taken for diagnosis and treatment.