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Why do moles happen?

Dr. Ellen Marmur, MD
Dermatology

A nevus is a nest of cells that grows larger or more protuberant as we age. This group of skin cells is so tiny that it usually doesn't show up as a visible mole until about the age of four. When melanocytes are mixed into the nevus, it will appear pigmented.

Simple Skin Beauty: Every Woman's Guide to a Lifetime of Healthy, Gorgeous Skin

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Simple Skin Beauty: Every Woman's Guide to a Lifetime of Healthy, Gorgeous Skin

What if a leading dermatologist just happened to be your best friend and you could ask her anything? DR. ELLEN MARMUR, a world-renowned New York City dermatologist, answers all your questions with...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.