About World Cancer Day
World Cancer Day is held on 4 February every year, and in 2027 it falls on Thursday, 4 February 2027. The Union for International Cancer Control began it in 2000 to push for earlier testing and fairer treatment. In India the day usually means free screening camps at hospitals and health centres, and for most people, a message to someone living with cancer or looking after a patient at home.
Most people who look up World Cancer Day are looking for words. Someone they know has just been told the news, or is halfway through chemotherapy, or has finished treatment and is waiting for the next scan.
Why is World Cancer Day on 4 February?
World Cancer Day was set up in 2000 by the Union for International Cancer Control (UICC), a Geneva-based body that brings together cancer societies, hospitals and health ministries. The date, 4 February, has been fixed since then.
UICC now runs the campaign in three-year blocks instead of changing the theme every year. The theme for 2025 to 2027 is United by Unique, which asks health systems to treat the person in front of them and not just the tumour. That idea has a practical edge. Two people with the same diagnosis can need very different care, and in India the difference is often distance from a cancer hospital and whether anyone in the house can afford to stop working.
How common is cancer in India?
India's National Cancer Registry Programme, run by ICMR, estimated 14,61,427 new cancer cases in the country in 2022. That works out to about 100 cases for every one lakh people. The same study projected the number would reach roughly 15.7 lakh by 2025, and it found that about one in nine Indians is likely to get cancer at some point in life.
What India gets is not the same mix the rest of the world gets.
| Most common cancers | In men | In women |
|---|---|---|
| First | Lung (10.6% of cases) | Breast (28.8%) |
| Second | Mouth (8.4%) | Cervix (10.6%) |
| Third | Prostate (6.1%) | Ovary (6.2%) |
| Fourth | Tongue (5.9%) | Uterus (3.7%) |
| Fifth | Stomach (4.8%) | Lung (3.7%) |
Mouth and tongue cancer sitting that high is an Indian pattern, and the reason is chewed tobacco: gutkha, khaini and betel quid. WHO puts tobacco behind nearly 1.35 million deaths in India every year. Much of the cancer counted above was preventable, which is also the argument behind World No Tobacco Day on 31 May.
The other Indian pattern is late arrival. Breast and cervical cancer can both be treated when caught early, yet many women reach a hospital only when a lump has grown large or bleeding has gone on for months.
What does India offer free on World Cancer Day and after?
Free checks for three cancers are already part of routine government care, not a one-day camp. Under the National Programme for Prevention and Control of Non-Communicable Diseases, Ayushman Arogya Mandirs, the upgraded health and wellness centres, test adults for oral, breast and cervical cancer along with blood pressure and diabetes.
The scale is real. By 31 October 2025 the government counted 1,80,906 such centres running, and the screenings done there included 31.88 crore for oral cancer, 14.98 crore for breast cancer and 8.15 crore for cervical cancer.
What to say to someone with cancer
Ordinary greetings do not fit here. This is what patients and carers most often say helps, and what hurts.
Do
- Say their name and say you are around. "I'm here, I'll call Sunday" beats a long message.
- Offer one specific thing: a hospital drop, dinner on chemo days, school pickup for the kids.
- Ask before you visit. Treatment weeks leave people with no immunity and no energy.
- Write again months later. Support disappears once treatment ends, which is when many people crash.
Avoid
- Don't send "Happy World Cancer Day". Nothing about it is happy for the person reading it.
- Don't forward miracle cures, diet claims or WhatsApp remedies.
- Don't ask if they smoked, ate badly or prayed enough. Blame is the last thing they need.
- Don't say "be strong" or "fight it". Some days they can't, and then your line becomes a failure.
I heard today. I'm not going anywhere. Tell me when you want company and when you want quiet, and I'll follow that.
Thinking of you through this round. I'm making khichdi on Thursday and leaving it at your gate, so don't come down.
Good to have you back. Your desk is exactly as you left it. Say the word on any day you need to go home early.
You have been holding everything together. Let me take Tuesday's hospital trip so you can sleep.
Five years clear. I remember how frightened we all were. Wishing you a very boring result this time too.
On World Cancer Day I thought of your mother, and how she kept feeding everyone even from her hospital bed. She is missed here.
If the person is in treatment, Get Well Soon wording often fits better than anything tied to the day. If the family has lost someone, use Condolence wording instead. To thank the people who saw them through it, National Doctors' Day on 1 July and International Nurses Day on 12 May are the better dates.
How to wish someone on World Cancer Day
A World Cancer Day message is almost never a celebration. It usually goes to a person in treatment, a survivor, or a family that is tired and frightened. Keep it short, name the person rather than the disease, and offer one thing you will actually do: a lift to the hospital, a hot meal, an hour with the children. Skip "be strong" and skip "Happy World Cancer Day".
Write a few lines in your own words, pick a design and share it as one link on WhatsApp, Instagram or anywhere else. They open an animated card made just for them, with no app and no sign-up.
Language tip: English, Hindi + recipient language.
When is World Cancer Day in 2026 and 2027?
World Cancer Day is on 4 Feb every year. Only the weekday changes.
- 2026
- 2027
Frequently asked questions
When is World Cancer Day in 2027?
World Cancer Day 2027 falls on Thursday, 4 February 2027.
Is it right to say "Happy World Cancer Day"?
No. World Cancer Day is not a celebration, and the person reading your message may be in treatment or grieving. Write something plain instead, such as "Thinking of you today", or offer practical help.
What is the World Cancer Day theme?
The Union for International Cancer Control runs World Cancer Day in three-year campaigns. The theme for 2025 to 2027 is "United by Unique", which asks for cancer care built around each person's situation and not the diagnosis alone.
What do you say to someone who has just been told they have cancer?
Keep it short and specific. Say you heard, say you are not going anywhere, and offer one concrete thing you will do, such as driving them to the hospital on Friday. Avoid advice, survival statistics and stories about other patients.
Which cancers are most common in India?
By ICMR's 2022 estimates, breast cancer is the most common cancer in Indian women at about 28.8 per cent of cases, followed by cervical cancer. In men, lung cancer leads, followed by cancer of the mouth and tongue, both linked to chewed tobacco.
Where can I get a free cancer check in India?
Ayushman Arogya Mandirs, the government's upgraded primary health centres, check adults for oral, breast and cervical cancer free of charge under the National Programme for Prevention and Control of Non-Communicable Diseases. District hospitals and medical colleges also run free camps around 4 February.
Why does India report so much mouth cancer?
Chewing tobacco in forms such as gutkha, khaini and betel quid is common across India, and it damages the lining of the mouth. Cancers of the mouth and tongue together make up a large share of cancers in Indian men, which is why Indian prevention campaigns start with tobacco.
Last verified by the Kehdoo team on .