Back pain can be caused by the following causes: first, back myofasciitis, when there is back myofasciitis, there can be back pain symptoms, in the cold, the symptoms of pain are more obvious when exerting, this time to early examination and examination, to exclude other diseases to diagnose and treat. Second, rheumatoid, when rheumatoid involvement of the spine, can have back spinal pain symptoms, back pain in the morning is more obvious, there can be morning stiffness symptoms, then to check the spine X-ray, CT and blood tests to diagnose. Third, ankylosing spondylitis, patients with ankylosing spondylitis can have symptoms of back pain, morning stiffness and increased pain when waking up in the morning, which can improve after a while of activity, can be accompanied by pain in the sacroiliac joint, which should be examined early spinal x-ray and sacroiliac joint x-ray, blood tests to diagnose and treat.