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A bulging disc results when an intervertebral disc, which serves as a cushion between the vertebrae, loses its typical shape and compresses a spinal nerve.
Bulging discs (also called “protruding discs”) have undergone changes in their shape and structural integrity that can lead to spine pain or other problems. Unlike herniated discs, bulging discs have not broken through their outer shell-like casing. Sometimes, a bulging disc and a bone spur occur at the same time. This condition is known as disc osteophyte complex.