I recommend that you visit your health care professional for an accurate diagnosis. Mole-like spots can appear on your skin at any age, and while many of these spots may be harmless, you should keep an eye out for signs of cancer. A is for asymmetry. This means that if you divide the mole in half, the two parts do not match. Asymmetry may be a sign of cancer.
B is for border.
Irregular edges that are ragged or notched may be a suspicious sign. C is for color. Uneven or multiple colors that may vary from brown, black, and pink to red, white, and blue can signal melanoma, a type of skin cancer that can be deadly. D is for diameter. A mole may be abnormal if it is bigger than a pencil eraser.