World AUTOimmune & AUTOinflammatory Arthritis Day2026 · Date · History · Messages
AiArthritis identifies May 20 as World AUTOimmune & AUTOinflammatory Arthritis Day, says the International Foundation established the awareness day in 2012, and identifies itself as the official host.
About World AUTOimmune & AUTOinflammatory Arthritis Day
World AUTOimmune & AUTOinflammatory Arthritis Day is observed on May 20. The International Foundation for Autoimmune & Autoinflammatory Arthritis (AiArthritis) identifies itself as the official host of the global awareness event.
AiArthritis says it established the awareness day in 2012 to give autoimmune and autoinflammatory arthritis diseases a distinct awareness platform.
Why World AUTOimmune & AUTOinflammatory Arthritis Day matters
The campaign focuses attention on people living with autoimmune and autoinflammatory forms of arthritis and on the need for awareness, research and informed support.
An awareness-day guide is not a diagnostic tool. People with symptoms or questions about treatment should use qualified healthcare professionals and authoritative medical information rather than self-diagnosing from campaign material.
History of World AUTOimmune & AUTOinflammatory Arthritis Day
AiArthritis says World AiArthritis Day was established in 2012.
The organization continues to host the event annually on May 20.
The campaign’s identity is distinct from broader arthritis observances and is centered on autoimmune and autoinflammatory disease communities.
How the observance developed
This timeline uses documented milestones from reviewed sources. Missing stages are left out rather than guessed.
International Foundation for Autoimmune & Autoinflammatory Arthritis (AiArthritis)
AiArthritis says it established World AiArthritis Day in 2012 in response to patient-community need for a distinct awareness day.
International Foundation for Autoimmune & Autoinflammatory Arthritis (AiArthritis)
The organization identifies itself as the body that established the awareness day.
International Foundation for Autoimmune & Autoinflammatory Arthritis (AiArthritis)
AiArthritis identifies itself as the official host of the current global event.
What the evidence establishes
Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.
6 fields not established in reviewed sources
Also known as
World Autoimmune Arthritis Day
How to Observe World AUTOimmune & AUTOinflammatory Arthritis Day
Use AiArthritis’s current campaign materials to learn how the observance is being marked this year.
Share reputable educational information without implying that a symptom or personal story proves a diagnosis.
Support patient-led advocacy, research education or community events that protect participants’ privacy and consent.
For medical questions, rely on clinicians and authoritative health sources rather than social-media advice.
World AUTOimmune & AUTOinflammatory Arthritis Day Facts
The annual date is May 20.
AiArthritis says it established the awareness day in 2012.
AiArthritis identifies itself as the official host.
The campaign concerns autoimmune and autoinflammatory arthritis diseases.
Awareness content should not substitute for diagnosis or treatment advice.
World AUTOimmune & AUTOinflammatory Arthritis Day Messages
May World AiArthritis Day amplify informed, respectful patient voices.
Wishing strength and solidarity to people living with autoimmune and autoinflammatory arthritis.
May today encourage better understanding, research and compassionate support.
Thank you to patients, families, advocates and professionals contributing to responsible awareness.
Topic and context
What this page does not assume
- Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
- Do not treat the title alone as proof of government recognition or public-holiday status.
- Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
- Health Information Not Medical Advice.
Evidence & sources
Sources used across the guide are gathered here. Labels show how each source supports the page, and contextual references are kept separate from primary evidence.
AiArthritis — Awareness Days
AiArthritis — Drive Awareness Day Of
AiArthritis — World AUTOimmune & AUTOinflammatory Arthritis Day
AiArthritis — Awareness Days (opens in a new tab)
First Party Health Nonprofit
AiArthritis — Drive Awareness Day Of (opens in a new tab)
First Party Health Nonprofit
AiArthritis — World AUTOimmune & AUTOinflammatory Arthritis Day (opens in a new tab)
First Party Health Nonprofit
Understand it, compare it, then explore further
Start with the most common factual questions, then compare closely related observances and explore useful connections.
Frequently asked questions
When is World AUTOimmune & AUTOinflammatory Arthritis Day?
20 May annually The documented recurrence rule is: 20 May.
Does World AUTOimmune & AUTOinflammatory Arthritis Day fall on the same date every year?
Yes. It uses a fixed annual date unless stronger evidence changes the pattern.
Is World AUTOimmune & AUTOinflammatory Arthritis Day an official public holiday?
The reviewed sources verify it within this scope: Global / International Foundation for Autoimmune & Autoinflammatory Arthritis campaign. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when reliable evidence explicitly does so.
Who established or recognizes World AUTOimmune & AUTOinflammatory Arthritis Day?
The reviewed sources identify International Foundation for Autoimmune & Autoinflammatory Arthritis (AiArthritis) as the proclaiming or establishing body. Current facilitation or coordination is recorded as International Foundation for Autoimmune & Autoinflammatory Arthritis (AiArthritis).
Is World AUTOimmune & AUTOinflammatory Arthritis Day international or country-specific?
The documented scope is international or global: Global / International Foundation for Autoimmune & Autoinflammatory Arthritis campaign. That does not mean every country treats the date as a public holiday or observes it in the same way.
How is this page verified?
The factual information is checked against reviewed sources, including the date pattern, scope and institutional history. This page was checked on 2026-09-26.
When is World AUTOimmune & AUTOinflammatory Arthritis Day?
It is observed annually on May 20.
Who established the day?
AiArthritis says the International Foundation for Autoimmune & Autoinflammatory Arthritis established the awareness day in 2012.
Who hosts it now?
AiArthritis identifies itself as the official host of the global event.
Does the awareness day provide medical diagnosis?
No. Campaign information can support awareness, but diagnosis and treatment decisions belong with qualified healthcare professionals.
Other observances on May 20
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