The 25th of May is World Thyroid Day (WTD). It was introduced by the European Thyroid Association (ETA) in 2008 and has been commemorated annually by all sister Associations: the American Thyroid Association (ATA), the Latin Thyroid Association (LATS), and the Asian Oceanic Thyroid Association (AOTA).

The Day forms part of International Thyroid Awareness Week, promoted and supported by the global, non-profit network of patient organizations known as Thyroid Federation International (TFI).

• Read the statement of the ETA Public Health Board

Activities in Europe

Belgium
29.05.2026
thyroidclub.org/program-may-2026/
Organized by the Belgian Thyroid Club

Greece
24.05.2026
endo.gr/event/awareness-event-for-world-thyroid-day/
Organized by the Hellenic Endocrine Society

Ireland
20.05.2026
Thyroid Updates Webinar Series 2026 - Session 2 - Thyroid Disease in Pregnancy – Zoom
Organized by the Irish Endocrine Society

Italy
25.-31.05.2026
Download
Organized by the Italian Association of Thyroidology (AIT)

Portugal
29.05.2026
Download
Organized by the Portuguese Society of Endocrinology

Serbia
Download
Serbian Thyroid Society

Patient Organization
25.05.2026
cleverage-it.zoom.us/webinar/register/WN_H2goOMFhQwesT2qX1DmQsg#/registration
Organized by Thyroid Federation International (TFI)