World Cancer Day, observed on February 4, 2026, arrives this year with a renewed sense of urgency and hope. Across the globe, cancer remains one of the most formidable health challenges of our time. According to the International Agency for Research on Cancer (IARC), 2022 saw an estimated 20 million new cancer cases and 9.7 million cancer-related deaths worldwide. These staggering numbers are not just statistics—they represent real people, families, and communities grappling with the far-reaching impact of this disease.
India, in particular, is feeling the weight of this cancer surge. The country reported over 1.53 million cancer cases in 2024, a significant jump from 1.35 million in 2019. The numbers have climbed steadily each year: 1.39 million diagnoses in 2020, 1.42 million in 2021, 1.46 million in 2022, and 1.49 million in 2023. This upward trend underscores the growing need for awareness, early detection, and improved treatment options.
The theme for World Cancer Day 2026, "United by Unique," places the spotlight on personalized cancer care. The idea is simple yet powerful: every cancer journey is different, but the world is united in the quest for better care, support, and outcomes for all. This theme aims to put people—not just the disease—at the center of care, pushing for health systems that listen, adapt, and respond to each individual’s needs.
One area where personalization is making waves is breast cancer screening. Breast cancer remains the most common cancer in women globally, with 2.3 million cases diagnosed annually, according to the World Cancer Research Fund. In India, the odds are sobering: one in 28 women will face breast cancer in her lifetime, with cases rising alarmingly among younger urban women. The National Cancer Registry Programme and Indian Cancer Society both highlight this trend, warning that routine checks are often skipped, leading to late diagnoses and poorer outcomes.
Traditional annual mammograms have long been the standard for breast cancer screening. However, the recently published WISDOM study, released in early 2026, has upended this one-size-fits-all approach. The study found that risk-based screening—where a woman’s individual risk factors such as breast density and a 76-variant polygenic risk score are considered—is as safe and even smarter than annual mammograms. This approach means that advanced cancers can be caught earlier in high-risk women, while low-risk women can avoid the anxiety and unnecessary interventions that come with over-testing.
But what exactly is this 76-variant polygenic risk score? Most breast cancers aren’t caused by a single high-risk mutation, like BRCA. Instead, they result from the combined effect of many small genetic variations, known as single nucleotide polymorphisms (SNPs). Think of your DNA as a massive book: a monogenic risk, like BRCA, is a missing chapter or a glaring printing error, while polygenic risk is hundreds of tiny typos scattered across the pages. The 76-variant score analyzes the most influential of these typos to provide a nuanced picture of a woman’s risk, as explained in The Lancet Oncology and by the World Cancer Research Fund.
Dr. Vaishali Zamre, Director of Surgical Oncology and Breast Oncology at Andromeda Cancer Hospital, told TOI Health, "If I can assist those who may be reluctant to complete one additional test, I will recommend the mammography breast cancer screening tests. Early-stage breast cancer is often asymptomatic and painless; thus patients may not have any symptoms when they first present for breast cancer screening. Therefore, with mammograms, doctors will be able to detect earlier cancer than would otherwise have been diagnosed. This results in better treatment options, fewer side effects, and an improved chance of survival for breast cancer patients."
It’s not just about breast cancer, though. Cancers such as colorectal, endometrial, thyroid, and melanoma are also rising in younger adults. Screening remains irregular in many regions, and common warning signs—like painless lumps, unexplained weight loss, extreme fatigue, prolonged cough, changes in bowel or bladder function, abnormal bleeding, non-healing sores, and unusual skin changes—are often ignored. Dr. Zamre emphasized the importance of regular tests: "Screening tests, including mammography, colonoscopy, Pap smear with HPV testing, and skin exam, play an important role in detecting common cancers early and in an easier-to-treat form."
Colonoscopy, for instance, allows doctors to find and remove precancerous polyps in the rectum and colon before they become cancerous. Pap smears and HPV testing can spot abnormal cervical cells and high-risk viral infections years before cervical cancer develops. Regular skin exams and self-checks help catch melanoma and other skin cancers early, when they’re most treatable.
Personalization is also changing how breast cancer is treated. Dr. Gopal Sharma, Vice Chairman of Medical Oncology at Max Super Speciality Hospital in Delhi, shared with NDTV, "At these [early] stages, the goal is not just to remove the cancer but to lower the risk of recurrence using advanced therapies." He added that every patient’s cancer is different, and new tools allow doctors to tailor therapies based on tumor type, size, nodal involvement, aggressiveness, genetics, and even age. "Through personalised treatment plans, doctors can help patients not just survive but truly thrive."
Today’s personalized approach includes decoding tumor biology—distinguishing between hormone receptor-positive (HR+), HER2-positive, or triple-negative cancers—so that treatment matches the tumor’s specific signature. This prevents over-treatment and spares patients unnecessary side effects. Aggressive management of recurrence risks, including genetic testing and lifestyle coaching, is helping address the "what if" factor that haunts many survivors. New therapies, such as targeted immunotherapies and hormone-based drugs, are designed to minimize side effects like fatigue and appetite loss, allowing women to continue their daily lives even during treatment.
And the definition of success is evolving. No longer is it just about clear scans. Quality of life metrics now include mental health support, mindfulness, and peer groups. Emotional resilience is considered as vital as physical recovery, reflecting a more holistic view of cancer care.
On this World Cancer Day, the message is clear: social media posts and hashtags are only the beginning. Real action means understanding the numbers, recognizing the warning signs, and acting—by getting regular check-ups, making lifestyle changes, and supporting those living with the disease. As cancer’s toll grows, so does our ability to fight back, especially when we treat every case as unique and every patient as an individual. The advances in personalized screening and treatment are more than medical milestones; they are lifelines, offering hope for better outcomes and brighter futures.
By moving beyond awareness and embracing personalized, science-driven care, the world edges closer to the day when cancer is not a sentence—but a challenge that can be met with knowledge, compassion, and collective resolve.