What Causes Canker Sores?
6. Minor Canker Sore Symptoms
There are three main types of canker sore, one of which is minor canker sores. As is typical for canker sores, these will cause pain for the patient at the location of the sores. They are usually small and oval in shape, and whitish/yellow in color. They will also often have a red edge.
The sores can become particularly painful when food or other mouth parts come into contact with them, and this can make eating and talking rather uncomfortable. The sores will usually heal themselves with or without help, and they will usually leave behind no signs that they were ever there.
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