Moles

Moles, medically known as nevi, are clusters of pigmented cells that appear as small, dark spots on the skin, and can vary greatly in size and color. Moles typically appear on the face, arms, legs, and torso, but can develop anywhere on the body. Although most skin moles are harmless, in rare cases they can become precancerous, necessitating surgical removal. Some patients also opt to remove benign moles for cosmetic reasons using surgical, laser, or natural mole removal.
Types of Moles
Common skin moles are dark, uniform in color, and often raised above the skin. Atypical skin moles are called dysplastic nevi, and are usually larger than common moles, with irregular borders and coloring. These moles are considered to be precancerous and have a higher likelihood of turning into melanoma than common moles.
Moles and Skin Cancer
Because abnormal skin moles are more likely to turn into melanoma – the most aggressive and deadly form of skin cancer – it is important that they be monitored for any changes in shape, size, or color. If you have a mole that your doctor believes may be cancerous, he or she will take a tissue sample. Mole removal will be necessary if the sample shows evidence of cancer.