There are several possible causes of back pain: first, thoracic back fasciitis, thoracic back fasciitis is often caused by cold, strain, which can lead to chronic aseptic inflammation of the thoracic back fascia, resulting in symptoms of pain, then we should conduct relevant investigations and examinations to exclude other diseases for diagnosis; second, rheumatoid, when rheumatoid involvement of the spine can appear thoracic back pain The symptoms of rheumatoid rheumatism, when the rheumatoid rheumatism involves the spine, can appear soreness in the chest and back, especially in the morning, can be accompanied by the symptoms of morning stiffness, then the relevant blood tests and spinal X-ray, CT examination, to carry out early diagnosis and treatment; third, ankylosing spondylitis, ankylosing spondylitis patients can also appear soreness in the back of the chest, especially in the morning is more obvious, can be accompanied by morning stiffness symptoms, then the relevant blood tests and spinal X-ray, nuclear magnetic, CT examination, to carry out early diagnosis and treatment. The diagnosis and treatment should be done early.