Herniated L1/L2 disk, Anyone else here had this issue or surg? I am 6 days from a decompression laminectomy of my L1/L2 disk which is bulging to the left and central into the spinal canal. After seeing a Neur Sx who said that my sypmtoms of pain were not indicative of that level of herniation I got a second opin from a Prof. of neur sur at ... A disc made of a soft, gelatinous core (nucleus pulposus) surrounded by tough layers of fibrous tissue (annulus fibrosus) is situated between the vertebral bodies of L3 and L4. This disc provides cushioning and shock-absorbing functions to protect the vertebrae from grinding against each other during spinal movements. It can be caused by herniated or bulging discs, bone spurs, or collapse of the spinal disc space. Asked in Conditions and Diseases , Genetics , Cystic Fibrosis What organ of the human body is ... A disc has either a broad-based protrusion or a bulge, but not a broad-based bulge, according to the Laser Spine Institute. Disc protrusions in the cervical and lumbar spines can press on nerves and cause symptoms such as tingling, numbness, neck and back pain, and a decline in physical mobility.