Still's Disease

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Still's disease is a form of arthritis characterized by high spiking fevers, salmon-coloured rashes and inflammation of the joints. The disease is most common among children, for whom it is commonly referred to as systemic juvenile idiopathic arthritis.

Still's disease can also occur among adults, although much less commonly than for children. In this case it is referred to as adult-onset Still's disease or AOSD.

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How common is Still's disease?
What are the warning signs of Still's disease?
What causes Still's disease?

For most people with the disease, the characteristic fever and rashes usually go away after several months. The swelling of joints, however, can continue as a long-term condition and can persist into adulthood. Studies have shown that Still's disease can disappear on its own for 35 to 40 percent of people within ten years of onset. In all other cases, patients will develop chronic arthritis.

Still's disease can cause serious joint damage, particularly to the wrists. It can also affect normal functioning of the heart and the lungs. Treatment of the disease is targeted at specific areas of inflammation, which tend to be different for each patient. 

Protect Your Joints
Arthritis medications are designed to control a disease, slow its progression, and to help manage pain. There is a wide range of options – with new ones coming on the horizon – so understanding all possible treatments is not easy. 

These medications can be very complex, so you are encouraged to ask for in-depth explanations from your health care team – including pharmacists, who are an excellent source of information. 

To explore this area of treatment, The Arthritis Society has developed a comprehensive expert guide that delivers detailed information on medications used to treat arthritis.

Explore the Arthritis Medications A Reference Guide

The optimal treatment is what is best in each individual case – so speak with your doctor and/or pharmacist about what kind of medications are most appropriate for you.

Educational Programs 

The Arthritis Society provides a range of in-person workshops and online programs, all with a specific focus in mind. They include chronic pain management, overcoming fatigue, understanding your health-care team, symptom checkers, and more. Participants learn new information and skills, and for in-person workshops, can share ideas and experiences with others.

Explore arthritis workshops and courses


Discover information you can trust, because it’s based on evidence and vetted by experts, in The Society’s resource area. Learn about each disease, possible treatments, self-management, lifestyle issues, and so much more.

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Online Arthritis Self Management Courses

Online education programs that are informative, convenient and FREE.

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Arthritis Community

Connect with others, share your arthritis experience and get answers in a safe online space.

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Arthritis Publications

Evidence-based content to help you learn about the disease, treatments and self-management.