The causes of leg pain caused by lumbar spine disease generally include the following two aspects: first, lumbar disc herniation or lumbar spinal stenosis, the herniated disc compresses the nerves around the disc and causes leg pain, which is often pain from the hip to the back of the thigh, often fascial or muscular pain, and the pain increases when cold or exertion, and can be accompanied by discomfort in the hip and discomfort in both hips. Second, when the lumbar intervertebral disc protrusion or lumbar spinal stenosis, as well as serious lumbar spine slippage, lumbar spine tumor or tuberculosis, can compress the nerve root and lead to nerve root pain, which can be radiated from the hip to the back of the thigh to the front side of the calf, front side of the thigh, as well as the back of the foot, plantar pain, numbness, which is the most common symptom of leg pain caused by a lumbar disease.