Low back pain accompanied by foot pain can have the following causes: first, lumbar disc herniation, lumbar disc herniation can occur when the nerve is compressed, accompanied by symptoms of sciatica in the lower limbs, which can lead to foot pain. Second, lumbar spinal stenosis, when the lumbar spinal stenosis, the protruding disc or proliferating bone spur, stimulation and compression of the nerve root can appear lumbar pain, and at the same time can be accompanied by lower limb pain, can also appear foot pain. Third, lumbar spine tuberculosis or tumor, when the lumbar spine tuberculosis or tumor, serious damage to the vertebral body, will lead to compression fractures of the vertebral body and compression of nerves, resulting in low back pain and foot pain symptoms, then the relevant laboratory tests, as well as the lumbar spine nuclear magnetic examination for diagnosis.