Low back pain may be caused by kidney deficiency, but there are many causes of low back pain, and it cannot be diagnosed as kidney deficiency based on the symptom of low back pain alone, but diseases such as lumbar muscle strain and lumbar disc herniation can also cause low back pain, so a clear diagnosis is needed to treat the symptoms. When the kidney is deficient, because of the lack of kidney essence and yin and yang, there may be symptoms of low back pain, which is manifested as low back pain, weakness and limb weakness, but usually accompanied by dizziness, tinnitus, deafness and sunken and weak pulse. If there is only lumbar pain but no other symptoms, it is mostly considered as lumbar diseases, such as lumbar strain and lumbar disc herniation. In addition, back pain can also occur when the lumbar region is hit by external force and acute lumbar major muscle injury occurs. If the patient has lumbar spine tuberculosis, the same symptoms of low back pain will occur because the tuberculosis bacteria invade the dural sac and stimulate the nerve roots. Therefore, when lumbar pain occurs, the patient should go to a regular hospital orthopedic department or Chinese medicine department in a timely manner, and take symptomatic treatment after the specific cause is clearly determined by lumbar spine X-ray or CT examination to avoid delaying the condition.