Degenerative Disc Disease, which can develop during the natural aging process or from injury, when one or more of the discs between vertebrae weaken. The disease typically begins when small tears appear in the disc wall, resulting in pain, numbing or tingling in the legs. As the tears heal, scar tissue forms that may ultimately weaken the disc wall.

Over time, the disc’s center becomes damaged and is less able to act as a cushion, so vertebrae above and below it may move closer together. The Facet Joints – areas where the vertebral bones touch – may also twist into an unnatural position. Bone spurs can also form and may possibly pinch the spinal cord and nerves (Spinal Stenosis). The site of the injury may be painful.