Know the ABCDE's of Melanoma
If you draw a line through the mole on the right, the two sides do not match.
The borders of an early melanoma tend to be uneven. The edges may be scalloped or notched.
Having a variety of colors is another warning signal. A number of different shades of brown, tan or black could appear. A melanoma may also become red, blue or some other color.
Melanomas usually are larger in diameter than the size of the eraser on your pencil (1/4 inch or 6 mm), but they may sometimes be smaller when first detected.
Any change — in size, shape, color, elevation, or another trait, or any new symptom such as bleeding, itching or crusting — points to danger.