A lumbar disc herniation can lead to spinal stenosis. The spinal canal is a tubular structure surrounded by the vertebral body and the posterior edge of the intervertebral discs, the arch roots on both sides, and the vertebral plates, articular synovial joints, and ligamentum flavum in the posterior region, with the spinal cord, spinal cord periosteum, spinal nerve roots, blood vessels, and a small amount of connective tissue in the middle. Therefore, any factor that causes the surrounding structures of the spinal canal to compress in the center can lead to spinal stenosis. When various factors lead to herniation of the lumbar intervertebral disc, if the volume of the spinal canal decreases, it can lead to spinal stenosis. It causes symptoms such as radiating pain in the lower limbs, weakness, loss of sensation, etc. Intermittent claudication is a typical symptom. If the cauda equina nerve is compressed, it will cause numbness in the perineal area, weakness of the lower limbs, urinary weakness, and fecal incontinence. If the above symptoms occur, you should consult a doctor in time to clarify the degree of stenosis of the spinal canal and treat it in time.