What is an intervertebral disc for lumbar disc herniation? An intervertebral disc is a cartilaginous disc located between two vertebrae in the spine that acts as a shock absorber, similar to a “spring cushion”. The disc consists of three parts: the cartilage plate, the annulus fibrosus, and the nucleus pulposus. When does a herniated disc occur? When the intervertebral disc ruptures due to overexertion, sudden change in position or violent impact, the nucleus pulposus protrudes through the fissure in the ruptured disc. What are the symptoms to consider when a lumbar disc herniation is present? Low back pain and sciatic nerve radiating pain are the most common symptoms of the disease. Some patients also have symptoms such as hip pain, numbness in the perineum, urinary and bowel dysfunction, impotence, numbness, coldness and weakness in the radiating pain areas of the lower limbs. The pain can be aggravated by coughing, sneezing, and straining to relieve the bowels. Why do patients with herniated discs have leg pain and leg numbness? After the disc ruptures, the herniated nucleus pulposus compresses or stimulates the nerve roots, which can lead to numbness and electric shock-like pain in the large and small legs, soles and toes through which the nerve roots pass. The lumbar disc herniation prevention lumbar warmth, avoid cold to avoid sedentary, long standing to avoid end lifting heavy objects long-term arch, fly swallow and other functional exercise of the lumbar back.