Back pain should be alert to back muscle strain, frozen shoulder, supraspinous ligamentitis or interspinous ligamentitis, ankylosing spondylitis and other diseases. 1. Back soft tissue strain: due to trauma, cold, fatigue, maintaining a posture for a long time and other reasons, resulting in back muscles, fascia, ligaments and other soft tissue strain, triggered by back pain. 2. Frozen shoulder: Frozen shoulder may cause back pain. Frozen shoulder will cause pain in the shoulder joint at the beginning, and with the development of the disease, the scope of pain will be expanded, and some patients will have back pain. 3. Supraspinous ligamentitis or interspinous ligamentitis: When the supraspinous ligament and interspinous ligament of the thoracic spine are chronically inflamed, the stimulation of the inflammation may lead to spinal back pain. 4. Ankylosing spondylitis: Ankylosing spondylitis can be induced by cold and damp climate and environment, life and occupational stress, leading to symptoms of spinal back pain. There are many causes of back pain, if it is difficult to relieve, it is recommended to consult a doctor in time, make a clear diagnosis and follow the doctor’s instructions for treatment.