Abstract: @@ Low back pain is a common public health problem in western industrialized societies and the world as well. Studies indicate that the prevalence rate ranges from 12% to 35%, with around 10% of patients becoming chronically disabled. It also places an enormous economic burden on society. Although the exact cause of low back pain has yet to be defined, intervertebral disc degeneration is considered a major source of it. Since patients with degenerative discs are often asymptomatic, the mechanisms of it are still unclear.