Flat or raised, moles may be black, blue, red, yellow, or brown. Unlike freckles, moles are not necessarily harmless. Changes in mole size and color may indicate the first stages of skin cancer. It is important to learn how to assess the spots on your skin. Learn more about moles here .
Warts are small, raised bumps on the skin, usually the same color as the skin, but sometimes darker.
They may be ugly, but they are harmless. A wart is actually a benign tumor caused by the papilloma virus. By adulthood, nearly 90 percent of people have had at least one wart infection. Learn more about warts here . Shop O2 .