The causes of walking leg pain are the following: first, lumbar spine disease: lumbar disc herniation or lumbar spinal stenosis, if there is nerve compression, there can be significant pain when walking, to check the CT, MRI of the lumbar disc for early diagnosis and treatment. Second, pear-shaped muscle syndrome: pear-shaped muscle syndrome is due to the compression of the sciatic nerve by the pear-shaped muscle of the hip, which leads to nerve damage and obvious pain in the leg when walking. Pay attention to physical examination and check the electromyography of the lower limbs for diagnosis and early treatment. Third, lower extremity vascular disease: lower extremity artery occlusion can lead to leg pain when walking, the patient can also appear obvious pain at night, often intermittent pain, so we should check the lower extremity artery angiography and angiography for diagnosis and treatment.