Arthritis includes more than 100 diseases and conditions that affect joints, the tissues that surround the joint, and other connective tissue. Symptoms vary depending on the specific form of the disease, but typically include pain and stiffness in and around one or more joints. Some rheumatic conditions can also involve the immune system and various internal organs of the body.
- Page last reviewed: February 7, 2018
- Page last updated: November 21, 2017
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