Moles are usually atypical or dysplastic that is caused by color, size, and shape. Dysplastic nevi are usually larger than your average mole and has indistinct borders and will range in color from tan to dark brown. These moles will usually start to appear on the skin when they are at the age of 5.

Dysplastic nevi is also an indication of a high risk of developing melanoma. This health risk will increase when there are a number of dysplastic nevi, there is a family history of melanoma in the family, and when the skin is light-colored and has many freckles due to large amount of exposure to the sun.

When it comes to determine what moles look like doctors will use the “ABCDs of Melanoma Detection”.

A. Asymmetrical - Dysplastic nevi are usually asymmetrical. If the lesion is folded in half than the two parts would not match up together.

B. Border irregular - The borders are usually poorly defined or may have the look of a fried-egg.

C. Color varies - An atypical nevus will usually have more than one color to it.

D. Diameter - It is true that melanomas are usually more than 6 millimeters in diameter - but there is a chance that they could be diagnosed when they are smaller. The best thing to do is to watch out for a mole that might be significantly different than the others or that will bleed, itch, or even change its appearance. If you see any of these signs you should see your dermatologist.