A bursa is a fluid-filled sac that cushions a joint. When a bursa becomes inflamed, the condition is known as bursitis.

Gout is marked by inflamed, painful joints because of the formation of crystal deposits in them.

Infectious arthritis is an infection in the joint fluid and tissues. Different bacteria and viruses can infect a joint and usually are associated with a person's age.

Osteoarthritis, the most common form of arthritis, is a chronic, degenerative, joint disease that affects mostly middle-aged and older adults.

The less unnecessary stress you put on your joints, the less likely they are to wear out prematurely.

Psoriatic arthritis is a form of arthritis associated with psoriasis, a chronic skin and nail disease.

Reactive arthritis, also known as Reiter's syndrome, is a type of arthritis that occurs as a reaction to an infection somewhere in the body.

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