Science today isn't the same as the science 2000 years ago was but some principles remain the same. The human knowledge constantly grows but with more knowledge there comes even more mysteries and unsolved questions, so science is always going forward.
Causes. The most common cause of a cervical herniated nucleus pulposus is gradual degeneration of the disc, attenuation (weakening) of the posterior annulus fibrosis, and subsequent protrusion of the nucleus pulposus into the spinal canal causing compression of the nerve root.
A herniated disc alone typically only causes mild, local disc pain. More severe symptoms develop, however, when the material from the nucleus pulposus compresses the spinal cord or a nerve root. Compression of a nerve root may result in the following symptoms: Pain along the affected nerveâs pathway.