World Thyroid Day
World Thyroid Day is held on May 25. This event in the third decade of the month may is annual.
World Thyroid Day was established in 2008 as part of a campaign led by the European Thyroid Association and the American Thyroid Association to emphasize the prevalence of thyroid diseases, to focus on the urgent need for education and prevention programs and to increase awareness of new treatment modalities.
Menstrual Hygiene Day on May 28 (It was initiated by the German-based NGO WASH United in 2014 and aims to benefit women and girls worldwide. Menstrual Hygiene Day has received the support of over 270 global partners who are committed to making MHM a priority worldwide.);
Sun Awareness Week in Canada on May 28 (May 28 - June 3)