Oral cancers can affect any part of the mouth, but is most commonly found in the tongue, floor of the mouth, lips and cheeks.
Smoking is a major cause of cancer affecting the mouth and the throat. The use of tobacco in any form increases the risk of oral cancers. The risk of developing cancer increases with the length of time a person has smoked and the amount they have smoked.
Oral health professionals recommend that people look out for red and white patches in their mouths and sores and ulcers that do not heal within two weeks. In most cases, spots in the mouth will be harmless, but it is important not to delay a diagnosis.