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Medical Definition of Canker sores
1. Also known as aphthous ulcers, these are small ulcer craters in the lining of the mouth that are frequently painful and sensitive. Canker sores are one of the most common problems that occur in the mouth. About 20% of the population (1 out of 5) people will have canker sores at any one time. Canker sores typically last for 10-14 days and heal without scarring The word canker comes from the Latin cancer for crab. (The Latin cancer was once pronounced kanker from which came canker). Chronic ulcers might seem as hard as a crab shell. (12 Dec 1998)
Lexicographical Neighbors of Canker Sores
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