Degenerative Disc Disease (DDD) is a natural condition of the body that causes deterioration of the intervertebral discs. This is a gradual process that may compromise the spine. Although DDD is relatively common, its effects are usually not severe enough to warrant significant medical intervention. The intervertebral disc is one structure prone to degenerative changes associated with aging. Long before Degenerative Disc Disease can be seen radiographically, biochemical and histologic (structural) changes occur. Over time the collagen (protein) structure of the annulus fibrosis weakens and may become structurally unstable. Additionally, water and proteoglycans(PG) content decreases. PGs are molecules that attract water. These changes are linked and may lead to the disc’s inability to handle mechanical stress.