Bulging Disc
A bulging disc protrudes outside the space it normally occupies between the vertebrae, but it does not rupture. It becomes serious when the disc bulges enough to narrow the spinal canal. It is usually considered a normal part of the aging and degeneration process. Symptoms include muscle weakness, numbness or tingling in one or both legs or arms, low back pain, and radiating pain in upper arm, forearm, and possibly finger.
Arthritis 
