The common clinical causes of back pain include cervical spondylosis, latissimus dorsi muscle strain, thoracic vertebral joint dislocation, myofasciitis, etc. 1. Cervical spondylosis: this disease is usually associated with cervical disc herniation, osteophytes and other factors, the cervical spine muscles are easy to be in a state of tension and fatigue, and the neck muscle groups are connected to the spinal vertebrae muscles and other back muscles, which may also cause tension and fatigue in the back muscles, accompanied by pain. 2. Latissimus dorsi muscle strain: the latissimus dorsi muscle belongs to the flat muscle of the human back, which has an important role in human activity, functional exercise and spinal support. When some people exert themselves improperly during physical labor and exercise or stay sedentary for a long period of time, it may lead to latissimus dorsi strain, which is clinically manifested as soreness and pain in the back. 3. Thoracic spine joint dislocation: when the body is violently traumatized or when heavy objects are carried, it may cause thoracic spine dislocation, which is more serious than other joint diseases, and its clinical manifestations include chest and back pain, accelerated heartbeat, dyspnea, gastric pain and bloating. 4. Myofasciitis: this disease refers to the aseptic inflammation of fascia and muscle caused by trauma, strain injury, cold and other factors, the main clinical manifestations include local muscle pain, pressure pain, and pain symptoms will be aggravated by cold, fatigue and other conditions. If the above situation exists, it is recommended to go to the hospital as soon as possible, under the doctor’s examination for a clear diagnosis and targeted treatment.