Spinal stenosis is generally divided into congenital (primary) and acquired (secondary). According to the location, it is divided into cervical spinal stenosis, lumbar spinal stenosis, and thoracic spinal stenosis. By anatomical site, it can be divided into central stenosis, lateral saphenous stenosis, and neurogenic foraminal stenosis. Spinal stenosis refers to various forms of stenosis of the spinal canal, nerve root canal, and intervertebral foramen, including changes in the volume of the spinal canal caused by soft tissue (e.g., hypertrophy of the ligamentum flavum, calcification of the posterior ligament, etc.) and stenosis of the dural sac itself. The main symptom of the disease is back and leg pain, and in severe cases, weakness of both lower limbs. Congenital spinal stenosis is caused by congenital narrowing of the spinal canal during the growth of the spine, including nutritional trauma. Most patients begin asymptomatically and later in life, some degenerative disease or injury to the spine results in the appearance of signs and symptoms of spinal stenosis. Acquired spinal stenosis is caused by herniated discs, vertebral hyperplasia, slipped vertebrae, as well as hypertrophy, calcification or ossification of the posterior longitudinal ligament and ligamentum flavum that stimulate the spinal nerves and surrounding blood vessels, resulting in inflammatory adhesions, congestion and edema of the neurovasculature, leading to the occurrence of spinal stenosis. First, the harm of spinal stenosis 1, urinary and fecal disorders generally appear later. In the early stage, urinary and fecal incompetence, urinary frequency, urinary urgency and constipation are common, and in the late stage, urinary retention and fecal incontinence may occur. 2, claudication The 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.Limited movement Movement disorder is mainly caused by spinal stenosis vertebral fasciculation sign, weakness of the limbs, stiffness and inflexibility, which causes weakness of the lower limbs, heavy legs, a tendency to fall at the beginning, a feeling of falling when walking, unstable standing gait, easy to kneel down, needing an assisted wall or crutches to walk, the symptoms gradually worsen and become the initial reaction of tetraplegia. 4. Nerve root irritation Symptoms of nerve root irritation, such as a feeling of thoracic back fasciculation, pain, with obvious symptoms of lumbar and leg pain. In addition to the lumbar spine, spinal stenosis also often occurs in the cervical spine. Compared with other diseases, the early symptoms of spinal stenosis are not obvious, and only when it develops to a certain degree will there be radicular radiating neuralgia on one or both sides, however, for this disease, if it cannot be treated at the onset However, for this disease, if treatment cannot be started at the initial stage, it is difficult to obtain better results, so people should treat this disease with caution. 1, usually pay more attention to reasonable labor posture and good living habits. When lifting heavy objects, bend at the hips and knees and squat, straighten the waist and back, and only after the heavy objects are pressed against the body, can you stand up and take steps with force. When carrying or carrying heavy objects, chest slightly bent forward, hips and knees slightly flexed, step steadily, the step should not be large. When sleeping, the head and neck should be natural neutral position, both hips and knees slightly flexed, and avoid the body to be cooled by wind and moisture. 2, sitting or ambulating work should not be too long, should avoid soft tissue fatigue brought about by long-term maintenance of a posture, before strenuous exercise, pay attention to preparatory activities and protection. 3, for the use of lumbar labor-intensive occupation, to wear a wide belt with a protective effect. Prevention of spinal stenosis begins with good habits, such as not sitting or lowering the head too long, etc. To prevent spinal stenosis, we must start with our daily habits and develop good posture.