Spinal stenosis is a term used to describe a narrowing of your spinal canal. The narrowing may not cause any symptoms. However, the narrowing may progress to cause squeezing (compression) of your spinal nerves or compression of your spine. Narrowing that affects your spinal cord is sometimes called a myelopathy. More than one level of your spine may be affected. The blood supply to the nerves in your spine may also be temporarily reduced by the compression.
This is a companion discussion topic for the original article at https://patient.info/bones-joints-muscles/back-and-spine-pain/spinal-stenosis