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What does it mean when a mole changes in shape?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
Moles that change in shape may indicate that a worrisome skin condition is underway. Dermatologists call these moles dysplastic nevi, and they can increase the risk for melanoma, a type of skin cancer. If a mole that has been the same shape for most of your life begins to grow in size or become uneven and jagged, it signals a change in the integrity of the cells. Moles do not change in shape when the cells within them are stable and not growing. Have a doctor check any moles that have changed in size, appearance, color, or shape.

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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.