I keep getting blisters in my mouth
Repeated mouth blisters are often ulcers caused by local injury or inflammation, but persistent or unusual sores need an examination.
Why might mouth blisters keep coming back?
Repeated mouth blisters are often ulcers caused by local injury or inflammation, but persistent or unusual sores need an examination.
How can different mouth lesions be recognised?
Aphthous ulcers commonly appear as painful shallow sores with a pale or yellow centre and red border on movable lining tissue, while herpes lesions usually affect the lip edge or hard palate.
What can trigger recurring sores inside the mouth?
Trauma from biting, sharp teeth, appliances, burns, stress, some medicines, and systemic illness can also contribute.
Frequently asked questions
Can home care cure the underlying problem?
Home care can reduce irritation and symptoms, but decay, infection, cracks, and persistent lesions need diagnosis and treatment.
What information should I bring?
Note when it began, what triggers it, where it is, what makes it better or worse, and any swelling, bleeding, trauma, or medicines.
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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.