World AUTOimmune & AUTOinflammatory Arthritis Day 2026 Awareness Campaign

Learn more about how to get involved and sign up for our interest list at this link.

Join us on World AiArthritis Day for the duration of May 20th to raise awareness and share resources. This event historically unites thousands of people in 60+ countries worldwide to DRIVE global awareness and education about our diseases. World AiArthritis Day was created by the International Foundation for Autoimmune & Autoinflammatory Arthritis (AiArthritis) in 2012 to establish a day that differentiates AiArthritis diseases from osteoarthritis. Since then, the purpose has evolved to include education and awareness and to collect important resources from around the world so people affected by these diseases can access them.

To catch the attention of those who do not understand our diseases, including the type of arthritis associated with them, we use AUTO-themed awareness and education materials. It is a day for ALL community members and patient organizations to celebrate, DRIVE education and awareness, and fundraise. Click here to learn more about World AiArthritis Day.

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Event Details

When? May 20th, or May 19th at 6am ET - May 21st at 5am ET. This day is celebrated annually on May 20th, as it TRAVELS through all time zones globally, so it's actually 47 straight hours!

World AiArthritis Day 2025 Impact

40+ patient organizations and advocates
1000s of individuals participated worldwide
Two in-person Race-A-Thons in the St. Louis area

Participating cars from World AiArthritis Day 2025

What is an Autoimmune or Autoinflammatory Arthritis (AiArthritis) Disease?

There are over 100 "AUTO" diseases, but only about 2 dozen of them also include inflammatory arthritis as a major disease factor, too. The AUTO disease and the inflammatory arthritis start in the immune system and TRAVEL throughout the whole body as inflammation. This combination of AUTO + Inflammatory Arthritis makes this group of diseases unique. Approximately 1 in 10 people, or 450 million people worldwide, are living with one of these diseases.

Learn more about AiArthritis diseases at this link.

World AUTOimmune & AUTOinflammatory Arthritis Day 2026

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