Moles are small, coloured spots on the skin. Most people have them and they are usually nothing to worry about unless they change size, shape and colour. 

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Have your moles examined under any of the following circumstances:

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• They get bigger

• They change shape – particularly if they get an irregular edge

• They change colour – getting darker, patchy, or multi-shaded

• Loss of symmetry – when two halves of a mole do not look the same

• They itch or are painful

• They bleed or become crusty

• They look inflamed

• You have a family history of melanoma