This is a HealthLine Online content page created by Healthwise. HealthLine Online helps you make better decisions about your health.

Top of the page

Melanoma skin cancer sign: Asymmetry

A normal mole and a mole with halves that do not match.

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

  • Asymmetry is one thing to watch for. This means that one half doesn't match the other half. Call your doctor if you notice that:
    • One half of a mole doesn't match the other half.

Current as of: October 25, 2024

Author: Ignite Healthwise, LLC Staff
Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

Current as of: October 25, 2024

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

This information does not replace the advice of a doctor. Ignite Healthwise, LLC, 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.

Contact Information

Contact the SHA

Contact us with General Inquiries or Feedback About Your Care, the SHA is here to help.

Help Information

Emergency

If you believe you have an emergency, dial 911.

Questions?

If you have questions about your health, dial 811 on your phone or visit HealthLine Online.