A description is not a diagnosis
A white patch, a red patch or a mixed patch is a visible finding. Different conditions can produce similar appearances. Some changes relate to irritation or infection; others need assessment for potentially malignant disease. The correct explanation cannot be established from colour alone. [1,2]
Leukoplakia describes a particular clinical white patch after other explanations have been considered. It is not a label for every white area. A biopsy may be needed to understand the tissue changes and guide management. [1]
Do not rely on pain as the deciding factor
A patch can deserve investigation even when it is painless. Persistent red, white or mixed changes are among the findings that oral cancer services advise patients to have assessed. This does not mean every patch is cancer. [2]
For patients, a better question than “Does it hurt?” is “Has it been adequately examined, and do I know the follow-up plan?”
Prepare for the appointment
Note how long the patch has been present, whether it is changing and whether there has been a new denture, medicine or dental procedure. Share details of tobacco, areca nut and other products placed in the mouth.
Do not scrape, burn or repeatedly apply strong substances to the area in an attempt to identify it yourself. If you have used a cream, gel or mouthwash, tell the clinician its name and how long you used it.
Ask for an explanation and a review plan
Useful questions include: What diagnoses are being considered? Is biopsy indicated? If the area is being reviewed first, on what date should I return? What change should make me seek an earlier appointment?
Keep a copy of any report and attend the recommended follow-up even if symptoms improve. A photograph can help document change, but the meaning of that change needs professional interpretation. The aim is an explanation supported by examination and, where necessary, tissue investigation.
References
[1] NHS. Leukoplakia. Read source
[2] The Royal Marsden NHS Foundation Trust. Key signs of mouth cancer to look out for. Read source