Q&A: What Are Those White Bumps Inside My Mouth?

woman clenching teethQ: Are bumps on the inside of your mouth dangerous? – P. L.

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A: The bumps commonly found inside the mouth are canker sores (also called aphthous ulcers). These can show up on the tongue, cheek and base of the gums. They can be painful and will go away on their own in a week or two.

No one knows what causes these small, painful blisters inside your mouth. Triggers include hypersensitivity, infection, hormones, stress and not getting enough of certain vitamins like zinc, B12 or iron. Canker sores may also result from illnesses like celiac disease, Crohn’s disease and HIV/AIDS. Note: Canker sores are NOT associated with herpes like cold sores.

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