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Skin Cancer

Symptoms, Screening, and Diagnosis - Symptoms of Skin Cancer

Melanoma skin cancer is more difficult to treat, so it is important to check for signs and seek treatment as soon as possible. Use the following ABCD rule to remember the symptoms of melanoma. See a doctor if you have a mole, birthmark, or other pigmented area of skin with

A = asymmetry (one half of the mole looks different than the other half)
B = borders that are irregular
C = color changes or more than one color
D = diameter greater than the size of a pencil eraser.