Canker sores

Canker sores occur on the inside of the mouth, usually on the inside of the lips, cheeks, and/or soft palate. They can also occur on the tongue and in the throat. Often, several canker sores will appear at the same time and may be grouped in clusters.
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Canker sores
Definition:
A canker sore is an open sore in the mouth, which appears as a painful white or yellow ulcer surrounded by a bright red area. A canker sore is benign (not harmful). See also herpes, which can also cause mouth sores.
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Canker sores, also known as aphthous stomatitis, are among the most common causes of sores in the mouth.
From 30-85% of the US population have them at some point in their lives.
The peak incidence occurs among people ages 30-40 years.
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Canker Sores
Medically known as aphthous ulcers or aphthous stomatitis, canker sores are shallow ulcers that develop inside the mouth, particularly in the lining of the cheeks and lips or on the gums, tongue or palate.
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Answer:
No. Canker sores occur only inside the mouth and are not contagious. They sometimes occur as a result of trauma (biting the inside of the lip, burning the mouth with hot food) but may also occur spontaneously.
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Canker sores differ from cold sores in that they occur on the internal soft tissues of your mouth and aren't contagious. Conversely, cold sores almost always start out on the lips and don't often spread to the soft tissues of your mouth.
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Canker sores are painful sores in your mouth. They can be very tiny or up to a half inch wide. They may form on the inside of your cheeks or on your gums, lips, tongue, floor of your mouth, or roof of your mouth.
How does it occur?
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Canker sores are different in appearance than cold sores, in that canker sores do not form blisters.
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Cold and canker sores, gum disease, and tooth sensitivity or decay
Ectopic pregnancy (development of a fertilized egg outside the uterus)
Endometriosis ...
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OraDisc A (amlexanox, 2 mg) A mucoadhesive disc containing amlexanox for the treatment of canker sores.
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It is caused by either of two herpes simplex viruses: Type 1, herpes labialis, which generally involves the lip (producing what are commonly known as cold sores) or the mouth area (producing canker sores), but can involve the genital area; ...
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For a full article, see Canker sores (Aphthous ulcers).
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The exact cause of this disease is not known. There are many factors that are thought to be involved with the development of canker sores, including: ...
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The size of an ulcer can range from several millimeters to 2 cm in diameter and can occur as single or multiple lesions. Also called canker sores, recurrent ulcerative stomatitis, or ulcerative stomatitis.
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