Discs are small circular cushions between the bones in the spine. The bones are called vertebrae. The discs are compressible. They act as cushions for the vertebrae. A herniated disc happens when discs in the spine bulge from their proper place. This is most common in the lower spine.
Herniated Lumbar Disc
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Last reviewedNovember 2013by John C. Keel, MD; Michael Woods, MD
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