Important medical days worldwide
Complete global health awareness calendar · January to December 2026 · WHO & UN verified · 100+ observances
100+Health days
12Months covered
WHO& UN verified
2026Edition
WHO World Health Organization
UN United Nations
Intl International body
India India specific
★ Major global observance
January4▾
Jan 4World Braille DayUN
Jan 25World Leprosy Day (last Sunday)WHO
Jan 30World Neglected Tropical Diseases DayWHO
Jan 1-31Cervical Health Awareness MonthMonth
February5▾
Feb 4★World Cancer DayIntl
Feb 9International Epilepsy Day (2nd Monday)Intl
Feb 11International Day of Women in ScienceUN
Feb 28Rare Disease DayIntl
Feb 1-28Heart MonthMonth
March10▾
Mar 3World Hearing DayWHO
Mar 4World Obesity DayIntl
Mar 8International Women’s DayUN
Mar 13World Kidney Day (2nd Thursday)Intl
Mar 16National Immunization DayIndia
Mar 20World Oral Health DayIntl
Mar 21World Down Syndrome DayUN
Mar 22World Water DayUN
Mar 24★World Tuberculosis DayWHO
Mar 30World Bipolar DayIntl
April10▾
Apr 2World Autism Awareness DayUN
Apr 7★World Health DayWHO
Apr 11World Parkinson’s Disease DayIntl
Apr 14World Chagas Disease DayWHO
Apr 17World Hemophilia DayIntl
Apr 19World Liver DayIntl
Apr 19World IBS DayIntl
Apr 24-30World Immunization WeekWeek
Apr 25World Malaria DayWHO
Apr 28World Day for Safety and Health at WorkUN
May15▾
May 5World Hand Hygiene DayWHO
May 6World Asthma Day (1st Tuesday)Intl
May 8World Thalassaemia DayIntl
May 8World Ovarian Cancer DayIntl
May 10World Lupus DayIntl
May 12International Nurses DayIntl
May 12Chronic Fatigue Syndrome Awareness DayIntl
May 17World Hypertension DayIntl
May 18World AIDS Vaccine DayIntl
May 19World Inflammatory Bowel Disease DayIntl
May 22World Preeclampsia DayIntl
May 25World Thyroid DayIntl
May 29World Digestive Health DayIntl
May 30World Multiple Sclerosis DayIntl
May 31★World No Tobacco DayWHO
June9▾
Jun 5World Environment DayUN
Jun 8World Brain Tumor DayIntl
Jun 14★World Blood Donor DayWHO
Jun 19World Sickle Cell DayUN
Jun 19World Kidney Cancer DayIntl
Jun 21International Day of YogaUN
Jun 25World Vitiligo DayIntl
Jun 26International Day Against Drug AbuseUN
Jun 1-30Alzheimer’s and Brain Awareness MonthMonth
July7▾
Jul 1National Doctors’ DayIndia
Jul 11World Population DayUN
Jul 22World Brain DayIntl
Jul 24International Self-Care DayIntl
Jul 25World IVF DayIntl
Jul 28★World Hepatitis DayWHO
Jul 29World ORS DayWHO
August5▾
Aug 1World Lung Cancer DayIntl
Aug 1-7World Breastfeeding WeekWeek
Aug 3Indian Organ Donation DayIndia
Aug 13World Organ Donation DayIntl
Aug 31International Overdose Awareness DayIntl
September13▾
Sep 1-30PCOS Awareness MonthMonth
Sep 8World Physiotherapy DayIntl
Sep 10World Suicide Prevention DayWHO
Sep 13World First Aid Day (2nd Saturday)Intl
Sep 13World Sepsis DayIntl
Sep 15World Lymphoma Awareness DayIntl
Sep 17World Patient Safety DayWHO
Sep 21World Alzheimer’s DayIntl
Sep 25World Lung DayIntl
Sep 25World Pharmacists DayIntl
Sep 26World Contraception DayIntl
Sep 28World Rabies DayWHO
Sep 29★World Heart DayIntl
October18▾
Oct 1International Day of Older PersonsUN
Oct 5World Meningitis DayIntl
Oct 6World Cerebral Palsy DayIntl
Oct 9World Sight Day (2nd Thursday)WHO
Oct 10★World Mental Health DayIntl
Oct 12World Arthritis DayIntl
Oct 13World Thrombosis DayIntl
Oct 15Global Handwashing DayUN
Oct 16World Spine DayIntl
Oct 16World Anaesthesia DayIntl
Oct 16World Food DayUN
Oct 20World Osteoporosis DayIntl
Oct 21World Iodine Deficiency DayIntl
Oct 22International Stuttering Awareness DayIntl
Oct 24World Polio DayWHO
Oct 29World Stroke DayIntl
Oct 29World Psoriasis DayIntl
Oct 1-31Breast Cancer Awareness MonthMonth
November12▾
Nov 1-30Pancreatic Cancer Awareness MonthMonth
Nov 1-30Lung Cancer Awareness MonthMonth
Nov 7National Cancer Awareness DayIndia
Nov 8World Radiography DayIntl
Nov 10World Immunization DayWHO
Nov 12World Pneumonia DayIntl
Nov 14★World Diabetes DayWHO
Nov 17World Prematurity DayIntl
Nov 17National Epilepsy DayIndia
Nov 18-24World Antimicrobial Awareness WeekWeek
Nov 19World COPD Day (3rd Wednesday)Intl
Nov 20World Pancreatic Cancer Day (3rd Thursday)Intl
December7▾
Dec 1-31Constipation Awareness MonthMonth
Dec 1★World AIDS DayWHO
Dec 3International Day of Persons with DisabilitiesUN
Dec 5World Soil DayUN
Dec 10Human Rights DayUN
Dec 11International Mountain DayUN
Dec 18International Migrants DayUN
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Frequently asked questions
What is the most important medical day worldwide?▾
World Health Day on April 7 is the most important medical day worldwide. Established by the WHO in 1948, it sets the annual global health agenda and reaches hundreds of millions of people across every nation.
Which month has the most health awareness days?▾
October has the most health awareness days with 18 observances, including World Mental Health Day (Oct 10), World Stroke Day (Oct 29), World Polio Day (Oct 24), and Breast Cancer Awareness Month throughout October.
Which health days are recognized by the WHO?▾
Key WHO-recognized health days include World Health Day (Apr 7), World No Tobacco Day (May 31), World Blood Donor Day (Jun 14), World Hepatitis Day (Jul 28), World Diabetes Day (Nov 14), and World AIDS Day (Dec 1).
What is World AIDS Day and when is it observed?▾
World AIDS Day is observed every year on December 1. Established in 1988, it is the world’s longest-running health awareness campaign, dedicated to raising awareness about HIV/AIDS and working toward ending the epidemic.
