
The discs are the shock absorbers of the spine. They are pieces of cartilage which separate the vertebrae and help to cushion them. The discs have a soft pulpy centre , which may bulge or burst out through the tough outer portion & irritate adjacent ligaments or a nerve root.
Causes
Sometimes results from strenuous activity esp. if it is sudden, as on lifting something heavy or twisting around violently Generally it comes about gradually, more often between the ages of 20 & 50.
