Skin Cancer Home > The ABCDE Signs of Skin Cancer: "C" Is for Color
When examining your skin, pay extra attention to the color of your moles -- they can offer clues as to whether you have skin cancer. Normal moles tend to stay the same color (usually a shade of brown), while melanomas often change in color. A mole that is black doesn't necessarily mean you have skin cancer, but it should be looked at by a dermatologist.
- A for asymmetry -- one half of a mole does not match the other
- B for border irregularity -- the edges are irregular, notched, or blurred
- C for color -- the color is not the same all over and may include shades of brown or black, or sometimes with patches of pink, red, white, or blue
- D for diameter -- the spot is larger than 6 millimeters across (about ¼ inch -- the size of a pencil eraser), although melanomas can sometimes be smaller than this
- E for evolving -- the mole is changing in size, shape, or color.