A bulging disc is a common, age-related spine injury. The spine is made up of stacked vertebrae with spinal discs sitting between each one. The tough discs provide cushioning, support, and shock absorption and movement to the vertebrae. Each disc is made up of an outer ring (annulus fibrosus) and inner, jelly-like core (nucleus pulposus). Bulging Disc occurs when the nucleus shifts to press against the disc's outer ring, causing the disc to flatten and protrude into the spinal canal. Age-related wear and tear on the spine are the most common cause of a bulging disc. A traumatic accident like a car crash or sports accident can also damage spinal discs.