Fairly regular in shape and colour.
One half is unlike the other half.
B: Border irregularity
Scalloped or poorly circumscribed border.
C: Colour varied
Colour varies from one area to another. Has shades of tan,
brown or black. Is sometimes white, red or blue.
Diameter is larger than 6mm (width of a pencil eraser).
A mole or skin lesion that looks different from the rest,
or is changing in size, shape or colour.