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Spinal Stenosis: Lumbar

Picture of lumbar spinal stenosis
Picture of a normal spinal canal and a narrowed spinal canal (cross section)

When the spinal canal in the low back becomes narrower (stenosis), the nerve roots get squeezed.

By Healthwise Staff
Primary Medical Reviewer William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical Reviewer Robert B. Keller, MD - Orthopedics
Last Revised February 13, 2012

Last Revised: February 13, 2012

Author: Healthwise Staff

Medical Review: William H. Blahd, Jr., MD, FACEP - Emergency Medicine & Robert B. Keller, MD - Orthopedics

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