Patients with back pain may be caused by the following reasons: First, back fasciitis: this condition is most common in people who often do heavy back labor, as well as strenuous exercise, resulting in chronic strain on the muscles and fascia of the back, resulting in aseptic inflammation over time, leading to pain, the pain is mostly in the muscles of the inner scapula of the back. Second, the small joints of the thoracic spine misalignment: may have back accidental sprain, or sleep posture is not correct and lead to. Usually the pain point is in the middle of the back where the thoracic vertebrae are located, and when the thoracic vertebrae are active, the patient will have pain or aggravation. Third, inflammation of the lungs: common bacterial pneumonia or tuberculosis, etc., can take a chest CT or chest X-ray to clarify the diagnosis.