White sore inside mouth
A white patch or sore inside the mouth may be an ulcer, friction injury, fungal infection or another lesion, so persistence needs examination.
What can cause a white sore inside the mouth?
A white patch or sore inside the mouth may be an ulcer, friction injury, fungal infection or another lesion, so persistence needs examination.
Which mouth tissues can develop a white sore?
A mouth sore is a change in the lining of the cheek, lip, tongue, palate or gum. Its appearance, texture, pain, duration and relation to a sharp tooth or denture help narrow the cause.
What can you do for a white mouth sore?
Rinse gently with warm water, avoid tobacco and alcohol, choose soft foods, and do not scrape or burn the patch. Check for a sharp tooth, broken filling or rubbing appliance.
When does an internal mouth sore need care?
Seek care promptly for trouble swallowing or breathing, facial swelling, fever, uncontrolled bleeding, or a lesion that does not heal or keeps returning.
What should you ask about a white mouth lesion?
Ask whether the lesion is an ulcer, trauma, thrush or another condition, whether a sharp tooth or medicine may contribute, and whether examination or sampling is needed.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.