Cancer remains the leading cause of death in France.
With almost 400,000 new cases and more than 157,000 deaths every year, cancer remains the leading cause of death In France. THE February 4 2026 is dedicated to World Cancer Day (Or World Cancer Day in English). This solidarity event Who takes place in France and everywhere in the world aims to improve the detection and diagnosis of cancer, access to care or how others view the illness.
When is World Cancer Day?
In 2026, like every year, World Cancer Day takes place on Wednesday February 4.
Origin: who created World Cancer Day? When ?
It is an initiative of the International Union Against Cancer (UICC). It was established by the Charter of Paris on February 4, 2000 during the World Cancer Summit. Its main objectives are to promote research, improve patient services and mobilize the global community.
What is the theme of World Cancer Day in 2026?
The theme of the 2026 edition is “United by Uniqueness”. This is the second year of a three-year cycle (2025-2027) focused on the human experience. This year emphasizes the power of personal stories: each journey is unique, and sharing your story helps break taboos, raise awareness and influence health policies towards more personalized care.
Which cancers are covered by World Day?
Absolutely all of them. Mobilization concerns the most common cancers (prostate, breast, colon, lung) as well as rare cancers, pediatric cancers or blood diseases (leukemia, lymphoma). This list is not exhaustive.
What are the symbolic colors of cancer?
The official colors of World Cancer Day are blue and orange. On February 4, it is therefore advisable to wear clothes or a blue or orange ribbon to show support.
Several options are possible to participate in World Cancer Day:
►Pshare your story: In line with the theme “United by the Unique”, publish your testimony or that of a loved one on social networks.
► Complete 5 km in the sport of your choice (walking, running, swimming, hiking, cycling) and ask 5 friends to do this challenge. Record this activity on a fitness tracker (Strava, Runtastic and MapMyRide) and share a short video on social media to show participation.
► Make a donation on the International Union Against Cancer website, with the PayPal platform.
► Show support by being present or volunteer on the various actions linked to Cancer Day. Flash mobs, free screenings, attempts to break a record, conferences, fundraisers, friendly races… All events are listed on the Activity Map of the official World Cancer Day website.
► Wear the official colors in the fight against cancer: blue or orange
World Cancer Day posters
What is World Cancer Day about?
It serves to push governments and citizens to act on several fronts:
- Prevention: 40% of cancers could be avoided through lifestyle changes.
- Equity: Reducing the healthcare gap between different regions of the world.
- Innovation: Support research, including advances in immunotherapy and artificial intelligence in oncology.
Sources: Foundation for Cancer Research (Arc Foundation) / Union for International Cancer Control (UICC) / Worldcancerday.org website


