ABCD's of Melanoma

melanoma
Asymmetry
If you draw a line through this mole, the two halves will not match.
melanoma
Irregular
Borders
The borders of an early melanoma tend to be uneven. The edges may be scalloped or notched.
melanoma
Multiple
Colors
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.
melanoma
Diameter bigger than a pencil eraser
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.
melanoma
Evolving
Any change — in size, shape, color, elevation, or another trait, or any new symptom such as bleeding, itching or crusting — points to danger.

 


Reference: http://www.skincancer.org/skin-cancer-information/melanoma