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What are the warning signs of melanoma?

Kelly Traver
Internal Medicine

A changing, new, or "different" mole requires immediate medical attention. The "ABCD rule" outlines the warning signs of melanoma:
A-Asymmetry: One half does not match the other half.
B-Border irregularity: The edges are ragged or blurred.
C-Color: The pigment is not uniform.
D-Diameter: Melanomas are usually (but not always) greater than 6 millimeter in diameter

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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.