A joint is where two bones meet, like at the knee or shoulder. Joint injuries can be caused by dislocations or strains that force them out of position.

Inflammation (arthritis) and swelling (increased fluid in or around a joint) are signs of damage. They can be painful, reducing movement and may require drug treatment or surgery. Osteoarthritis is the most common form of joint disease. Follow the links below to find trusted information about joint diseases.