A herniated disc, also referred to as a bulging, ruptured or slipped disc, is one that protrudes into the spinal canal and can apply pressure to a nerve root. A herniated lumbar disc can cause pain in the back and all the way down the legs and feet. About 90% of herniated discs occur in the lumbar spine. Treatment for a herniated disc includes anti-inflammatory medication, physical therapy and steroid injections. Surgery is not usually required but can provide significant relief in cases where needed.