Slipped disc (there’s really no such thing!) refers to a condition where the pad of tissue between two spinal bones is shifted out of normal position. Discs are important and useful when healthy. The discs allow the spine to support body movement and keep the spinal bones from grinding together when our backs move. The discs also assist the spinal bones to properly protect the spinal cord which carries thousands of nerves through it.
Any misalignments of the spinal bones can result in decreased function of the discs . The misaligned spinal bones cause the disc in between the bones to be squeezed out. When it bulges out past the sides of the vertebrae, the disc is considered “slipped”, although bulged would be a better term.