The typical mole (nevi) is a small brown spot. But moles come in different colors, shapes and sizes:
- Color and texture. Moles can be brown, tan, black, blue, red or pink. They can be smooth, wrinkled, flat or raised. They may have hair growing from them.
- Shape. Most moles are oval or round.
- Size. Moles are usually less than 1/4 inch (about 6 millimeters) in diameter — the size of a pencil eraser. Those present at birth (congenital nevi) can be bigger than usual, covering part of the face, torso or a limb.
- A is for asymmetrical shape. One half is unlike the other half.
- B is for border. Look for moles with irregular, notched or scalloped borders.
- C is for color. Look for growths that have changed color, have many colors or have uneven color.
- D is for diameter. Look for new growth in a mole larger than 1/4 inch (about 6 millimeters).
- E is for evolving. Watch for moles that change in size, shape, color or height. Moles may also evolve to develop new signs and symptoms, such as itching or bleeding.
Skin tags are soft, noncancerous growths that usually form within the skin folds of the neck, armpits, breasts, groin area, and eyelids. These growths are loose collagen fibers that become lodged inside thicker areas of the skin. These skin lesions are usually harmless, but they can be painful when snagged by jewelry or clothing.