Moles or nevi appear as small brown dots and are due to clustering of pigmented cells. Most moles appear in childhood and young adulthood. Most individuals have between 10-40 moles. Some moles may be persistent whereas, others may fade overtime.
Skin tags are benign growths of the skin and are composed of collagen and blood vessels. They often occur in areas where there is greatest friction (ex. skin rubbing on skin or clothes). A skin tag often appears as a soft, hanging bulb of skin that is attached to a stalk or peduncle. Although the exact cause of skin tags is unknown, they seem to be associated with pregnancy, obesity, diabetes, hyperinsulinemia and genetics.