Tobacco in any form—including gutkha, khaini, paan with tobacco, cigarettes and bidis—raises the risk of oral cancer. Early changes in the mouth can be easy to ignore, especially when they do not hurt. A persistent change deserves attention; it should not be diagnosed at home.
Warning signs to notice
Look for a sore or ulcer that does not heal, a white patch, a red patch or a mixed red-and-white patch, a lump or thickened area, unexplained bleeding, persistent pain, difficulty chewing or swallowing, a neck lump, or difficulty opening the mouth. Some symptoms may have causes other than cancer, but they need assessment if they persist.
The two-week rule
If a mouth ulcer, patch or other unusual change lasts longer than about two weeks, arrange an examination by a doctor or dentist. Do not wait for pain. People who use tobacco or areca nut should be especially careful about persistent changes.
What happens at an examination?
A clinician or dentist may ask about tobacco and alcohol use, examine the lips, tongue, gums and inside of the cheeks, and feel for lumps. If an area looks suspicious, they may refer you to a specialist for further tests. A biopsy may be recommended to establish a diagnosis.
What you can do now
Stop using tobacco and areca nut, avoid trying to scrape or burn a patch, and do not apply unverified home remedies. Ask a health worker or doctor about oral screening and support to quit tobacco.
Important: A persistent mouth ulcer or patch is not proof of cancer—but it is a reason to get checked promptly. Early assessment can make a meaningful difference.
Official information and further reading
- ICMR–National Institute of Cancer Prevention and Research: Oral cancer
- National Health Mission: NCD training module
This article is for general awareness only. It is not a diagnosis, prescription or substitute for personalised medical advice. Medical content should be reviewed by a qualified clinician before publication. Scheme rules, hospital services and helpline details can change; verify them with official sources.