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1
Moles, or nevi, are skin growths made of pigment cells that can appear at birth or during childhood and adolescence.
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2
Most moles are benign, but changes in size, color, or shape may indicate a risk of melanoma, requiring dermatologist evaluation.
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3
Common moles are usually smaller than 5 mm, while congenital nevi are present at birth and dysplastic nevi are larger and irregular.
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Signs that a mole may need evaluation include rapid growth, bleeding, irregular borders, large size, or having more than 50 moles.
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Preventive measures against skin cancer include avoiding excessive sun exposure, using sunscreen, and wearing protective clothing.
