World Cancer Day
Wednesday, February 4, 2026
World Cancer Day on February 4 is an international day led by the Union for International Cancer Control to raise awareness of cancer and to encourage its prevention, detection, and treatment. It is a unifying initiative under which the entire world can unite against the global cancer epidemic.
History
Established at the World Summit Against Cancer in 2000, World Cancer Day aims to save millions of preventable deaths each year through education and action. The day is organized around multi-year campaigns, with themes such as 'Close the Care Gap' highlighting inequities in cancer care access worldwide.
How It's Celebrated
The day is marked by awareness campaigns, fundraising events, educational programs about prevention and early detection, and advocacy for equitable access to cancer treatment. People wear the lavender ribbon, participate in screenings, and support cancer research and patient organizations.