A Sore Mouth Can Have Several Causes
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A sore spot inside your mouth can be easy to ignore. Perhaps it’s a small ulcer that appeared after biting your cheek, or an area that feels irritated when you eat something salty or acidic. Most minor mouth sores settle on their own, but one that doesn’t heal deserves attention.
Mouth ulcers can have several causes. Accidental bites, sharp teeth, ill-fitting dentures, stress, certain foods, and some medications can all contribute. Occasionally, recurring ulcers can be associated with nutritional deficiencies or other health conditions.
Pay attention to how long the sore lasts. A typical minor ulcer often heals within a couple of weeks. If an ulcer, lump, red or white patch, or other unusual area remains for longer than this, make an appointment with your dentist or GP.
The location can also provide useful information. A sore that repeatedly appears in exactly the same place may be caused by a sharp tooth, filling, denture, or another source of irritation that needs to be addressed.
While it heals, avoid foods that make the area sting, particularly very spicy, salty, or acidic foods. Using a soft toothbrush and maintaining good oral hygiene can help keep your mouth healthy without further irritating the sore.
Dentures deserve particular attention. If they rub against your gums or regularly cause sore areas, don’t simply put up with the discomfort. Your dentist may be able to adjust their fit.
A persistent mouth sore doesn’t automatically mean something serious. There are many harmless explanations, and most problems can be treated effectively once the cause is identified.
But an unusual change that doesn’t go away is worth having checked. Your mouth can recover from plenty of everyday knocks and irritations. When something refuses to heal, give it the attention it deserves.

