Back pain may be related to myofibrositis, thoracic spine lesions and some internal diseases. 1. Myofibrositis: aseptic inflammation formed due to long-term muscle strain, most of which is seen in the back below the shoulder blade, mainly manifested as pain, soreness, discomfort, and muscle tension, and in severe cases, there will be striated nodules and limited shoulder joint activities. 2. Thoracic spine lesions: such as thoracic spine tumors, cysts in the spinal canal will compress the nerves that innervate the back, and the abnormal function caused by nerve compression will be manifested as back pain, numbness and other symptoms. 3. Other thoracolumbar spine lesions: such as post-traumatic vertebral fracture, vertebral small joint disorder, ankylosing spondylitis, vertebral tuberculosis, etc., which will cause ligaments around the thoracolumbar spine, joint capsule, and small joints to be damaged, and will cause back pain during activities. 4. Some internal diseases, such as advanced stage of lung cancer, can also cause back pain radiologically. There are many causes of back pain, if it is difficult to relieve, it is recommended that patients go to the hospital in time for medical examination and treatment after clarifying the cause of the disease.