Separating each spinal vertebra is a disc. Its fibrous outer ring holds in a jelly-like material. Because of the way a disc attaches to the spinal bones above and below it, it can't actually "slip." However, a disc can bulge, tear, herniate, thin and collapse. But it can't slip.

Many Concord folks recognize that this predisposes you to a relapse. Chiropractors know that muscles and ligaments supporting the spine don't fully heal until after symptoms subside.