Herniated Lumbar Disc
Most disc herniations occur in the bottom two discs of the lumbar spine, at and just below the waist.
A herniated lumbar disc can press on the nerves in the spine and may cause pain, numbness, tingling or weakness of the leg called "sciatica". Sciatica affects about 1 to 2% of all people, usually between the ages of 30 and 50.
A herniated lumbar disc may also cause back pain, although back pain alone (without leg pain) can have many causes other than a herniated disc.