Moles (Nevi) are common. Almost every adult has a few of them. Adults who have light skin often have more moles. They may have 10 to 40 moles on their skin. This is normal.
Most moles appear on the skin during childhood and adolescence. Moles will grow as the child (or teen) grows. Some moles will darken, and others will lighten. These changes are expected and seldom a sign of melanoma.
A mole on your body usually has these characteristics:
- One-color – often brown, but a mole can be tan, black, red, pink, blue, skin-toned, or colorless
- Round in shape
- Flat or significantly raised
- Unchanged from month to month
Although moles have a distinct look, they may not look alike. Even in the same person, moles can differ in size, shape, or color. Moles can have hair. Some moles will change slowly over time, possibly even disappearing.
It is also important to know that moles can appear anywhere on the skin. They can develop on your scalp, between your fingers and toes, on the soles and palms, and even under your nails.
For adults, new moles and changes to existing moles can be a sign of melanoma. Caught early, melanoma is highly treatable.
Look for the ABCDE’s of mole monitoring:
- A = Asymmetry. One half is unlike the other.
- B= Border. An irregular, scalloped, or poorly defined border.
- C = Color. Varies from one area to another; has shades of tan, brown, or black; is sometimes white, red, or blue.
- D = Diameter. Melanoma is usually greater than 6 mm (the size of a pencil eraser) when diagnosed, but they can be smaller.
- E = Evolving. A mole or skin lesion that looks different from the rest or is changing in size, shape, or color.