Low back pain may be caused by the following reasons: first, lumbar muscle strain, patients with lumbar muscle strain can have symptoms of low back pain, then we should conduct relevant physical examination and related tests to exclude other diseases for diagnosis; second, lumbar dorsal fasciitis, lumbar dorsal fasciitis is often caused by long-term lumbar cold, strain, or sedentary, bending work, etc., then the symptoms of low back pain can occur Third, kidney disease, when the kidney inflammation or tumor, in the early stage can also appear symptoms of lumbago, then we should carry out kidney CT, ultrasound and urine tests for early diagnosis and treatment; fourth, kidney deficiency, kidney deficiency can also appear lumbago, accompanied by weakness of the knees, then we should go to the Department of Traditional Chinese Medicine for Chinese medicine pulse diagnosis In this case, we should go to the Chinese medicine department for diagnosis and early treatment of kidney tonic drugs.