|Normal Mole / Melanoma||Sign||
|Asymmetry||when half of the mole does not match the other half|
when the border (edges) of the mole are ragged or irregular
|Color||when the color of the mole varies throughout|
|Diameter||if the mole's diameter is larger than a pencil's eraser|
|Photographs Used By Permission: National Cancer Institute|
Melanomas vary greatly in appearance. Some melanomas may show all of the ABCD characteristics, while other may only show changes in one or two characteristics. Always consult your physician for a diagnosis.