The most common cause of bone spurs is joint damage from osteoarthritis or degenerative joint disease. The cushioning between your joints and the bones of your spine can wear down with age. Rheumatoid arthritis, lupus, and gout can also damage your joints.
Bone spurs also often form after an injury to a joint or tendon. When your body thinks your bone is damaged, it tries to fix it by adding bone to the injured area.
Other causes of bone spurs include:
- Overuse – for example, if you run or dance a lot over a long period of time
- Bone problems that you were born with
- Narrowing of the spine (spinal stenosis)