Narrator: The vertebrae that make up the spine are cushioned by spongy discs, which act as shock absorbers. Discs may move out of place or break open. This condition is referred to as a herniated, slipped or ruptured disc. A herniated disc can occur in any part of your spine, but most affect the lower back or lumbar spine. When a herniated disc of the lumbar spine presses or impinges on a nerve root it can cause pain, numbness and weakness in one or both legs along with low back pain.