Cervical spine disc herniation is the disruption of the integrity of the normal intervertebral disc, the pad of cartilage that sits between the vertebral bones of the spine.
Mild disruption of the disc may result in cervical disc degeneration.
Watch this xray description of a cervical spine disc herniation.
Video Description of Cervical Spine Disc Herniation
Disc Herniation of the Cervical Spine
Learn More about it with this animation. Note the disc herniation compressing the nerve, causing inflammation and pain.