What exactly are lumbar spondylosis and herniated disc disease?

See below : Lumbar spondylysis just essentially refers to the development of degernerstive changes within the spine. A herniated disc is a condition in which a part of the inner portion of the disc has displaced out through the outer portion of the disc into the nerve canal. Don't hesitate to discuss with your doctor. It is sometimes easier to understand by looking at the MRI images themselves.