World Cancer Day is an international day marked on February 4th to raise awareness of cancer and to encourage its prevention, detection, and treatment. World Cancer Day is led by the Union for International Cancer Control (UICC) to support the goals of the World Cancer Declaration, written in 2008. The primary goal of World Cancer Day is to significantly reduce illness and death caused by cancer and it is an opportunity to rally the international community to end the injustice of preventable suffering from cancer. The day is observed by the United Nations.

World Cancer Day targets misinformation, raises awareness, and reduces stigma. Multiple initiatives are run on World Cancer Day to show support for those affected by cancer. Hundreds of events around the world also take place.

World Cancer Day was established on 4 February 2000 at the World Cancer Summit Against Cancer for the New Millennium, which was held in Paris. The Charter of Paris against cancer, which was created to promote research, prevent cancer, improve patient services, also included an article establishing the anniversary of the document’s official signing as World Cancer Day, was signed at the Summit by the then General Director of UNESCO, Kōichirō Matsuura, and then French President Jacques Chirac in Paris on 4 February 2000.

The theme for the years 2025-2027 is “United by Unique, which «places people at the centre of care and their stories at the heart of the conversation.» The 2022-2024 campaign theme was “Close the care gap” that focused on eliminating the difference in access to cancer care services faced by populations of various groups of country income, age, gender, ethnicity etc. The 2019-2021 campaign theme was “I Am and I Will’. The theme seeked to counter the negative attitude and fatalistic belief that nothing can be done about cancer, and instead promoted how our personal actions can be powerful and impactful. In 2016, World Cancer Day started a three-year campaign under the tagline of “We can. I can.’, which explored the power of collective and individual actions to reduce the impact of cancer. Prior to 2016, the campaign themes included «Not Beyond Us» (2015) and «Debunk the Myths» (2014).

It is important to celebrate world cancer day because it is a day to highlight the success stories, the lives saved, and the breakthroughs that have improved the quality of life for patients worldwide. Uniting Under a Common Goal – Perhaps most importantly, World Cancer Day brings people together with the common goal of a cancer-free future. And also the people who have gone through it or still going through it need to be  heard.

There are many type of cancers so below we can see them all from alphabetic aspect: