The Evidence on Mouth Cancer Awareness, Without the Hype
It is often found late because early changes are painless, and the dental check-up is where most of them are spotted.
Key takeaways
- Referral threshold: any ulcer, lump or patch lasting more than 3 weeks
- Main risk factors: smoking, alcohol, and the two combined
- Most useful single change: Check your own mouth periodically, including under the tongue.
- Commonest mistake: Waiting to see whether a patch or ulcer settles beyond three weeks.
- See a doctor if any of the signs under "When to speak to a doctor" below apply to you.
What it is
Recognising the changes in the mouth that need assessment within three weeks. It sits within Oral Health. What follows are the published numbers, not the ones that get passed around.
The numbers, in one place
| Measure | Figure |
|---|---|
| Referral threshold | any ulcer, lump or patch lasting more than 3 weeks |
| Main risk factors | smoking, alcohol, and the two combined |
| Also associated with | HPV infection |
| Where to look | tongue, floor of mouth, gums, inside of cheeks, lips |
What helps
The advice below comes straight from the guidance cited at the foot of this page.
- Check your own mouth periodically, including under the tongue
- Attend dental check-ups, which include a soft-tissue examination
- Stop smoking and keep within alcohol guidelines
- Report anything lasting more than three weeks
What to avoid
The common mistakes, including the ones that sound sensible.
- Waiting to see whether a patch or ulcer settles beyond three weeks
- Assuming painless means harmless
- Smoking and drinking heavily together, which multiplies risk
Where to go next
- Answers to the Common Questions on Mouth Cancer Awareness
- Mouth Cancer Awareness: The Quick Reference
- Mouth Cancer Awareness — the reference entry
- Dry Mouth: What Published Guidance Supports
- The Evidence on Toothbrushing, Without the Hype
When to speak to a doctor
See a dentist or GP urgently for a mouth ulcer, lump, or red or white patch lasting more than three weeks, persistent hoarseness, difficulty or pain on swallowing, a persistent lump in the neck, or unexplained loose teeth. Early assessment substantially changes outcome.
Where this comes from
How this page was put together
Every figure, recommendation and warning above is taken from the guidance named in Where this comes from. Nothing on this page is inferred, summarised or generalised beyond what those bodies publish: where they give a number, it is their number, and where they are silent, so are we. Pages are rebuilt whenever the underlying record changes. Sign-off by a named clinician, where it has happened, is shown at the top of the page along with the date.
Medical disclaimer
This article is general information, not medical advice. It cannot account for your own history, medication or circumstances. Always speak to a GP, pharmacist or another qualified health professional before making changes that affect your treatment, and never delay seeking medical advice because of something you have read here. In an emergency, call 999.
Spotted something wrong? Report an error on this page. We correct on the page and say what changed.
