Back and lumbar pain can be caused by the following reasons: first, lumbar back myofasciitis and lumbar muscle strain, these two diseases can often lead to back pain, especially in the cold, tired and morning when the back pain is very obvious, and after a while of activity can be improved. Second, rheumatoid, when rheumatoid involvement of the spine, there can be symptoms of low back pain, often accompanied by morning stiffness, then early examination of the spine X-rays, CT and blood tests to diagnose and early treatment. Third, ankylosing spondylitis, ankylosing spondylitis patients can also have low back pain, often involving the entire spine, can be accompanied by pain in the sacroiliac joint, then the spine X-ray, MRI and blood tests to diagnose.