Bone spurs are bony projections that develop along bone edges. Bone spurs (osteophytes) often form where bones meet each other — in your joints. They can also form on the bones of your spine.

The main cause of bone spurs is the joint damage associated with osteoarthritis. Most bone spurs cause no symptoms and can go undetected for years. They might not require treatment. If treatment is needed, it depends on where spurs are located and how they affect your health.