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.
Colic caused by an obstruction is usually the result of a malpositioning of a segment of the intestine although the obstruction may occur in the cecum or colon. The most frequent cases due to strangulation or torsion of the intestine are umbilical and scrotal hernias.