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Melanoma skin cancer sign: Color variation

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Melanoma skin cancer sign: Color variation

A mole of uniform color and a mole showing color variation

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.

  • Color variation is one thing to watch for. Call your doctor if you notice that:
    • The color of a mole or other skin growth is not uniform. Shades of tan, brown, and black may be present. Dashes of red, white, and blue may add to the mottled appearance.
    • Color has spread from the edge of a mole into the surrounding skin.

Current as of: August 22, 2019

Author: Healthwise Staff
Medical Review:
Kathleen Romito MD - Family Medicine
Adam Husney MD - Family Medicine
Amy McMichael MD - Dermatology

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This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.