Dr Dr Dawn Harper, best known for co-presenting Embarrassing Bodies, has announced her support for Mouth Cancer Foundation campaign Bite Back at Mouth Cancer, which launches today and details checks that everyone should carry out to ensure they don't have mouth cancer.

Harper said 'It is recommended that the self-check is done once a month after teeth have been cleaned and by everyone over the age of 16 years. It takes less than two minutes. To carry out the mouth test all you need is a mirror, good light source and clean fingers. It is that simple. At each step you are inspecting and feeling for any lumps, red or white patches, changes in colour or texture, lingering ulcers or anything unusual'.