Mouth cancer affects the mouth, including the tongue, lips, throat, gums, and salivary glands. In fact, this type of cancer has one of the highest death rates of all cancers when left untreated—which is why it’s so important to know how to spot mouth cancer symptoms as soon as possible.

This guide will walk you through some of the telltale signs and symptoms of mouth cancer that you should be on the lookout for if you think you have it.