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 stenosis are present, the lesion site causing the symptoms can be identified by history and physical examination. 1. There is mostly prolonged lumbar pain, which gradually progresses to sacrococcygeal, hip and lower limb pain. The degree of pain is mostly distension, soreness and obvious fatigue after walking, and there is usually no radiating pain when abdominal pressure is increased. The above symptoms can be aggravated when walking, standing or exertion, and can be significantly reduced or disappeared when resting, especially when sitting or squatting in a forward position. Patients may have symptoms of sphincter dysfunction such as frequent urination, urinary urgency, dripping urine and constipation, frequent bowel movements, etc. They may also have sexual dysfunction. 3. Another characteristic of lumbar spinal stenosis is that the patient has heavy subjective symptoms but few objective signs. There is usually no obvious scoliosis, the tension of the back muscles is lighter than that of lumbar intervertebral disc herniation, the straight leg raising test is as much as 70°~80°, and there is no obvious radiating pain. 4, positive lumbar hyperextension test is an important sign of the disease, that is, the patient feels increased symptoms in the lumbar region and lower extremities when the lumbar hyperextension position, and sometimes radiation to the sacrococcygeal region and thighs can occur. 5.When the lesion develops to a certain stage, the innervation area under pressure (such as the saddle area) will have hypoesthesia or disappearance, muscle strength will be weakened, and the corresponding reflexes, such as knee reflex, ankle reflex and anal reflex will be weakened or disappeared.