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Melanoma Skin Cancer Sign: Border That Is Irregular

A normal mole and a mole with a ragged, notched border

Melanoma is the most serious type of skin cancer. The most important warning sign of melanoma is a change in the size, shape, or color of a mole or other skin growth, such as a birthmark.

  • Border irregularity is one thing to watch for. Call your doctor if any skin growth has developed ragged, notched, or blurred edges.

Current as of: October 25, 2024

Author: Ignite Healthwise, LLC Staff

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© 2017-2025 Healthwise, Incorporated. This information does not replace the advice of a doctor.