Morning lumbar pain may be caused by non-disease factors such as poor sleeping position at night, and may be caused by pathological factors such as lumbar muscle strain, inflammation of muscle fiber tissue, lumbar intervertebral disc herniation and so on. 1. Non-disease factors: such as poor sleeping posture, fatigue, excessive exercise, bed too hard or too soft, etc. can cause morning lumbar pain, usually can be gradually relieved by rest. 2. Pathological factors (1) Lumbar muscle strain: such as long-term poor sitting posture, work, heavy labor may cause inflammation of the lumbar dorsal fascia, resulting in lumbar muscle strain, so that the patient appears in the morning lumbar pain symptoms. (2) Myofibrositis: the lumbar muscles are relatively rich, under the influence of cold, exertion and other factors, it may cause aseptic inflammation of the muscles, thus causing morning back pain. (3) Lumbar intervertebral disc herniation: belonging to degenerative lesions, the herniated intervertebral disc can cause lumbar pain when it presses on the nerves. Do not rule out other diseases such as gallstones, pancreatitis, gynecological diseases, urological diseases and other conditions, so the back pain is not relieved, you should seek early medical attention to clarify the cause of the pain and then actively treat it, so as not to delay the condition.