Can Canker Sores Spread Inside Your Mouth. Most canker sores are round or oval with a white or yellow center and a red border. They form inside your mouth — on or under your tongue, inside your cheeks or lips, at the base of your gums, or on your soft palate.
While you may experience one or more canker sores at one time, it's likely they have been triggered by the same thing.
Red or white in color, they usually sting.
Usually, canker sores are caused by a vitamin deficiency. Most mouth sores heal on their own. Also, cold sores typically appear outside your mouth -- usually under your nose, around your lips, or under your chin. Cold sores are caused by a virus and are therefore contagious. A canker sore is a sore that suddenly appears in the mouth on your gums or the inside of your cheek. Canker sores Mouth ulcers — also known as canker sores — are normally small, painful lesions that develop in your mouth or at the base of your gums.
They can usually be placed in one of two categories depending on their cause and period of affliction. Canker sores, on the other hand, appear on their own and can't be spread to other people. A canker sore can't be spread from person to person or within your mouth. Canker sores are lesions that can develop on the soft palate inside the mouth and on the gumline. How to Treat a Canker Sore with Braces. Canker sores, on the other hand, are instigated by a variety of factors but cannot be spread.
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If you have ever experienced these irritating sores, you know what they look and feel like. Most mouth sores heal on their own. Generally, if you have a sore outside of your mouth, it's probably a cold sore and should be treated as such.