There are several possible causes of back pain in the morning: 1, lumbar strain and lumbar dorsal myofasciitis, these two diseases are often caused by cold and strain, can appear in the morning when the symptoms of back pain, after a short period of activity can be improved, then the relevant examination and examination to exclude other diseases for diagnosis. 2, rheumatoid diseases, when rheumatoid involvement of the lumbar spine, can appear 3, ankylosing spondylitis, ankylosing spondylitis can also appear in the morning when the back is sore, often accompanied by lumbosacral pain, then the blood tests and lumbar spine X-rays, CT, nuclear magnetic examination for diagnosis. 4, kidney deficiency, kidney deficiency can also appear in the morning when the back is sore, can be accompanied by knee weakness. The symptoms of weakness should be diagnosed at an early stage by taking a pulse in the Chinese medicine department for early treatment.