1. Adult Still's disease  (Trust Mark: Doctor-Reviewed)
Adult Still's disease is a rare illness marked by high fevers, rash, and joint pain. It may lead to long-term (chronic) arthritis. It is more commonly called adult-onset Still's disease (AOSD. • Reviewer: Mark James Borigini, Associate Clinical Professor of Medicine, University of California, Irvine, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

2. Arthritis  (Trust Mark: Doctor-Reviewed)
Arthritis is inflammation of one or more joints, which results in pain, swelling, stiffness, and limited movement. There are over 100 different types of arthritis. See also: Joint pain• Reviewer: Ariel D. Teitel, MD, MBA, Chief, Division of Rheumatology, St. Vincent's Hospital, New York, NY. Review provided by Verimed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.