World Cancer Day is observed annually on February 4 and was established at the New Millennium World Cancer Summit in Paris in 2000. This initiative was led by the International Union for Cancer Control with the express purpose of uniting the world in the fight against cancer through awareness, advocacy and collective action. Since its inception, the day has grown into a truly global movement, bringing together governments, healthcare institutions, researchers, patients, and communities.
Why the world needs cancer awareness
Cancer remains one of the leading causes of morbidity and mortality worldwide, affecting millions of lives each year. World Cancer Day is set aside to remind the global community that many cancers are preventable and that early detection, timely diagnosis and equitable access to care can save lives. The day goes beyond the statistics and focuses on the human stories behind this disease, highlighting the need to address disparities in cancer prevention and treatment by region and population.
From awareness to impact
Each year, World Cancer Day is guided by a unifying theme that emphasizes human-centered care and long-term commitment. This day serves not only as a moment of reflection, but also as a catalyst for sustained action to encourage policy change, support research, and amplify voices from across oncology. This underscores the shared responsibility that reducing the global burden of cancer requires collaboration that goes far beyond the day.
Today is World Cancer Day and also marks the fourth anniversary of the founding of the Elekta Foundation.
This week, we had the pleasure of hosting Elekta founder Dr. Laurent Rexel, Foundation Chair Cecilia Wikström, and our colleagues in Rwanda. We are grateful to have a board of directors that is so committed to serving the women who need it most.
We participated in Rwanda’s National Cancer Symposium, where leaders and partners renewed their commitment to Mission2027, with a shared ambition to meet the global cervical cancer elimination goal three years ahead of the World Health Organization’s goal.
We also had the opportunity to meet with the Minister of Health, Dr. Sabine Nsanzimana, to reflect on Rwanda’s continued commitment to advances in women’s cancer prevention and strengthening comprehensive cancer care.
Thank you for hosting our 4th anniversary reception with the hashtag #SwedishEmbassy and for being a strong home for our foundation.
On World Cancer Day, I think of the women whose lives have been changed by preventing cancer rather than treating it. The world really is a better place when women are healthier. ”
“Today is World Cancer Day 2026, and the theme of United by Unique feels particularly relevant to my work and the global fight against cancer.
I had the pleasure of speaking on cancer registries and data systems at the OncoDaily Global OncoThon, held in collaboration with the Union for International Cancer Control (UICC).
As a breast cancer specialist who has worked in low-income, middle-income, and high-income health care systems, one lesson has always remained constant. That means we can’t improve cancer outcomes without the right data.
Cancer registries and data systems are not technical back-office tools. These determine who is seen, who is prioritized, and ultimately who benefits from cancer treatment. When communities are missing or underrepresented in data, they are often missing from funding decisions, research, and solutions.
We are united by a common goal of reducing the global burden of cancer. However, the experience of cancer varies greatly from person to person and is often shaped by biology, geography, culture, socio-economic status, and access to care. If the data only captures average values, inequities are hidden.
And you rarely fix what you can’t see.
This is clearly evident in breast cancer. Some populations appear to have “low incidence” on paper, but present with more advanced disease at later stages. That doesn’t mean it’s low risk. It is under-detected and invisible within data systems.
Governments and global partners play a key role here. Investing in a cancer registry is not just about software and reporting. It’s about:
* Sustainable locally driven data system
* Capturing population diversity in a meaningful way
* Skilled workforce and ethical data governance
* Use data, not just documentation, to drive action
High-income countries are often not exempt. We collect vast amounts of data but fail to translate it into accountability and tangible change, especially for marginalized communities. Data without action risks eroding trust.
Being unique and united means recognizing and intentionally responding to diversity at scale. A comprehensive cancer data system enables unification of action, directs resources where they are needed most, and honestly measures impact.
My call on World Cancer Day is simple. Count everyone, count them right, and act on what the data shows. In this way, data becomes a tool of equity rather than exclusion. ”
“The path to optimal cancer care is a shared one. I was honored to write an article for the hashtag #WorldCancerDay that reflected the importance of trust, engagement, and empowerment in the patient journey. I strongly believe that by focusing on trusted knowledge and engaging in shared decision-making, you can become an active member of your care team. And that is the most powerful step you can take! Hashtag #UnitedByUnique
Read on USA Today: https://lnkd.in/d4yZxw4J
You can also view it here: https://lnkd.in/dYTb29NT”
“We are so excited to celebrate the expansion of the JCO Global Oncology leadership team on WorldCancerDay! After several years as the Associate Editor of JCO Global Oncology, Dr. Fabio Inoe de Moraes from Queen’s University takes on the role as the first Associate Editor of JCO Global Oncology. Dr. Moraes brings expertise and boundless enthusiasm in artificial intelligence, radiation oncology, and health systems innovation! He will continue to champion unbiased study and research, and his author status in global oncology reflects the journal’s tremendous growth and increasing impact.
I would like to thank the search committee for their excellent selection and to JCO Journals and the American Society of Clinical Oncology (ASCO) for their support in this new role. I can’t wait to see what lies ahead! ”
“World Cancer Day is a constant reminder of who we are fighting for and why we cannot give up. We are on track to defeat eight cancers by 2030, but our responsibility to patients is not just about the future. It is also about the choices we help people make today.
One of the most powerful tools we have is early detection. However, 64 million Americans are overdue for regular cancer screenings. It’s not because they don’t care. Often, we don’t know where to start.
That’s why our new campaign focuses on removing those barriers and meeting people where they already are, making it feel easier to take that first step.
With PfizerForAll, you can instantly see your eligibility and schedule a test in minutes.
While we chase tomorrow’s breakthroughs, what people do today matters. It’s important to the family. It’s about results. It’s important for the fight.
Please check your eligibility at https://lnkd.in/eNqqRmcW and encourage others to do the same. ”
“Equitable access to quality cancer care is a right, not a privilege” hashtag #WorldCancerDay
Let’s work to reduce disparities so that all patients can benefit from timely diagnosis, evidence-based treatment and support. ”
“Cancer is life-changing, but through action, awareness and care we can turn things around and give hope to those affected.”
It is often said that a cancer diagnosis is the moment when your world turns upside down. I’ve been thinking about new data released on WorldCancerDay that calls into question this inevitability.
Did you know that 37% of all new cancer cases (approximately 7.1 million per year) are associated with preventable causes? These are more than just numbers. They are a blueprint for action. We have the tools to ensure that millions of people’s worlds never have to be turned upside down.
The “Big 3” of prevention
Almost half of all preventable cancer cases worldwide are caused by just three types of cancer: lung, stomach, and cervical cancer. Cervical cancer in particular is our proof of concept. With the right “toolkit” of HPV vaccination, HPV screening tests (high-performance tests), and timely treatment, HPV is one of the few cancers that can realistically be eliminated.
global division
This data also highlights the harsh reality that the burden of preventable cancer is a reflection of our health care system.
In sub-Saharan Africa, preventable cancers account for 38% of cases among women.
In East Asia, it accounts for a staggering 57% of men.
These differences are not biological. They are systemic. These reflect gaps in national prevention policies, diagnostic capacity, and equitable access to care.
Turning Impact “Light Side Up”
Under this year’s theme #UnitedByUnique, we are reminded that while every journey is personal, our goals are collective. We turn the cancer “right side up” when we move.
From recognition to impact.
From late diagnosis to early detection.
From financial burden to institutional support.
How can we extend our success in eliminating cervical cancer to breast, lung, colorectal, prostate, stomach, and other cancers? How can we ensure that progress in one place is reflected in the standard of care in another?
Let’s flip the story. ”
“Supportive care enables better cancer treatment”
The Flinders Cancer Survivorship Group provides global leadership to support the great work of the Multinational Society for Supportive Care in Cancer (MASCC) as we develop and work towards our shared ambitions for 2030 and beyond. ”
“United by Unique” is the theme of World Cancer Day 2025-2027. This year, we will focus on putting people at the center of care and making their stories the foundation of every conversation.
The purpose is clear. It’s about making a tangible difference in ways that really matter.
Although each cancer journey is different, we are united in our efforts.
Every emotion is unique, but the community is united.
Although cancer itself is unique, healthcare professionals are united in purpose, aspirations, and challenges.
We are rapidly advancing in a world of digitalization and automation, but in our pursuit of efficiency, we risk overlooking the emotions that define our humanity: fear, hope, tears, and love. ”
“World Cancer Day”
Attend the annual conference of the Greek Cancer Federation. This is a truly multidisciplinary conference, bringing together experts in oncology and related specialties.
The conference highlighted the importance of a coordinated patient-centered approach and collaboration across the cancer care pathway through roundtable discussions and shared dialogue. ”
World Cancer Day: A Call to Global Awareness and Action in 2026, Part 1