Canker sores, or aphthous ulcers, are very common. These small ulcers look white or yellow and can appear on the tongue, inside of the mouth, and on the lips. The cause of canker sores is not clear.

Look at the sides of your tongue and the insides of your cheeks, and examine your lips inside and out. Learn more about oral cancer self exams and screening. A canker sore inside your mouth often ...

Shirley Chung recently made a major announcement about her tongue cancer, raising awareness and helping people spot the signs of this devastating disease.

round to oval sores inside the mouth. They may be white, yellow or grey in the centre and have a red border. They are commonly located on the insides of the cheek (buccal mucosa), tongue ...