Multiple nevi, known as moles, are growths on the skin. Moles are skin cells (melanocytes) that grow in a cluster instead of being spread throughout the skin. Moles appear in childhood either alone or in groups. As the years pass, moles usually slowly change by becoming raised or changing color.

What is multiple naevi?

Nevus (plural: nevi) is the medical term for a mole. Nevi are very common. Most people have between 10 and 40. Common nevi are harmless collections of colored cells. They typically appear as small brown, tan, or pink spots.

What does nevi look like?

A common mole (nevus) is a small growth on the skin that is usually pink, tan, or brown and has a distinct edge. A dysplastic nevus is often large and does not have a round or oval shape or a distinct edge. It may have a mixture of pink, tan, or brown shades.