A (asymmetry) moles
with irregular shapes, such as two very different-looking halves.
B (irregular border). Moles that are notched or scalloped borders c (changes in color) moles that have many colors or an uneven distribution of color. D (diameter) new growth in a mole larger than about about 1/4 inch (6 millimeters). E (evolving). Moles that change over time - grow larger, itch or bleed.