Intermittent claudication of spinal origin is caused by compression of the spinal cord, mostly due to long-term compression of the spinal cord by degenerative disorders of the cervical or thoracic spine, resulting in impaired blood supply and hypoxia. When walking for a longer period of time, a sensation of tethering in the thorax, abdomen or lower extremities occurs, so that the patient cannot walk for a long period of time and needs to rest for a few minutes to improve the symptoms before continuing to walk. These patients have a positive cone bundle sign and usually walk with an unstable gait or a feeling of stepping on cotton on the soles of the feet, which is easily distinguished when thinking of this disease. In the early stage of the lesion, the cone bundle sign is not obvious, but it can be positive in the period of intermittent claudication. In cases where both cervical and lumbar spinal stenosis are present, the site of the lesion causing the symptoms can be identified by history and physical examination. The blood supply to the spinal cord is unique in that it is made up of small terminal arteries with thin lumens. With age, the lining of the arteries gradually thickens and becomes brittle, and excess lipids in the bloodstream take advantage of the narrowing of the already thin arterial lumen, reducing blood flow. As a result of these causes and congenital deficiencies, spinal cord ischemia occurs under specific triggers. An early manifestation of spinal cord ischemia is intermittent claudication. Since the activities of the lower extremities are governed by the spinal cord, when walking, the excitability of nerve cells in the spinal cord increases and the demand for oxygen and energy increases, and this is due to arteriosclerosis, narrowing of the lumen, and inadequate blood supply to the spinal cord, and this causes ischemia in the nerve cells of the spinal cord. After walking for a period of time, you will feel weakness in both lower limbs, and the more you walk, the more weak you feel, and finally you cannot walk. After a short rest, the weakness disappears because the blood supply to the spinal cord improves; however, the weakness returns when walking again, a phenomenon medically known as “intermittent claudication”, which is a yellow card warning of spinal cord ischemia. If effective treatment is carried out at this time, it is often possible to receive twice the result with half the effort. If the treatment is not timely and the ischemia continues to develop, spinal cord thrombosis may occur, resulting in bilateral lower limb paralysis, loss of sensation and urinary and fecal incontinence, causing lifelong regret.