Cervical spinal stenosis hazards 1, urinary and fecal disorders: urinary and fecal disorders generally appear later. In the early stage, urinary and fecal incompetence, frequent urination, urgency and constipation are common, and in the late stage, urinary retention and fecal incontinence may appear. 2, claudication: symptoms are aggravated when the spine is posteriorly extended and reduced when it is forward flexed. In a few patients, the muscles of the lower limbs are atrophied, and the Achilles tendon reflex is sometimes weakened or disappeared. And also accompanied by the appearance of claudication symptoms. 3 Neck and back pain, upper limb weakness, numbness of fingers, dizziness, nausea and even blurred vision and swallowing. At present, acupuncture and traction can be taken to improve, and if the treatment effect is not very obvious, surgery can be considered. In daily life, we should pay attention to the combination of work and rest, correct posture, avoid prolonged standing and sitting, and preferably use a hard bed to maintain the physiological curvature of the spine.