<unk>  are growths on the skin. They happen when cells in the skin, called melanocytes, grow in a cluster with the surrounding tissue.<unk>  are very common. Most people have between 10 and 40<unk> . A person may develop new<unk>  from time to time, usually until about the age of 40.<unk>  are usually pink, tan or brown. They can be flat or raised. They are usually round or oval and no larger than a pencil eraser.
About one out of every ten people has at least one unusual (or atypical)<unk> that looks different from an ordinary<unk>  The medical term for these unusual<unk>  is dysplastic nevi. They may be more likely than ordinary<unk>  to develop into melanoma, a type of skin cancer. Because of this, you should have a healthcare professional check your<unk>  if they look unusual, grow larger, change in color or outline, or in any other way.
Moles
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