This image displays white-to-yellow lesions typical of apthous ulcers. This image displays several small erosions and aphthous ulcers on the lower lip. This image display the grayish-white color of an aphthous ulcer. This canker sore (aphthous ulcer) has a typical red border and white center. As displayed in this image, aphthous ulcers can be large, deep, and painful. As displayed in this image, aphthous ulcers typically have a white or yellow color. This image displays a tongue with three small ulcers from aphthae. This image displays an unusually large amount of canker sores of the lower inner lip. This image displays a large, healing aphtha (canker sore) on the lower lip.
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Canker Sore (Aphthous Ulcer)  Information for adults

Picture of Canker Sore (Aphthous Ulcer): This image displays white-to-yellow lesions typical of apthous ulcers. Divider line
This image displays white-to-yellow lesions typical of apthous ulcers.
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Who's At Risk
Canker sores affect approximately 25% of the general population. They are more common in women, and they usually start to appear in children or teens.

People infected with HIV/AIDS are often severely affected with canker sores.
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Last Modified: 22 Dec 2008
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