There are several possible causes for lumbar pain with buttock and thigh pain: first, lumbar disc herniation, when a lumbar disc herniation compresses the nerve root, there can be lumbar pain, with pain in the buttock and the back of the thigh, early CT and MRI examinations of the lumbar spine should be performed for early diagnosis and treatment. Second, lumbar spinal stenosis, lumbar spinal stenosis can also appear lumbar pain, accompanied by pain in the buttocks and the back of the thighs, either unilateral or bilateral, early X-ray and magnetic examination of the lumbar spine is required for diagnosis. Third, tumors or tuberculosis of the lumbar spine, tumors or tuberculosis of the lumbar spine can lead to compression fractures and compression of nerves when serious, resulting in symptoms of lumbar pain with buttock and thigh pain, to carry out nuclear magnetic and blood tests of the lumbar spine for early diagnosis and early. Fourth, lumbar spine slippage, serious lumbar spine slippage can compress the nerve and lead to lumbar pain, accompanied by hip and thigh pain, to carry out lumbar spine X-ray, CT, nuclear magnetic examination to carry out early diagnosis.