The process of bone being formed, which can cause symptoms if bone grows in soft tissue where it doesn't belong.

Gently stretch. Take NSAID medicines such as ibuprofen (Motrin IB, Advil, others) and naproxen sodium (Aleve) for pain.

See a healthcare professional if a joint or limb:

• Is painful.
• Can't move as far as it used to.
• Becomes swollen or has a change in skin color.