Cindy Crawford have something in common: prominent birthmarks. Crawford's mole and Gorbachev's port-wine stain are just two forms of the skin discoloration that affects about one in three infants. Birthmarks come in two types: pigment (light-brown cafe au lait spots, dark-brown moles and gray or blue Mongolian spots) or vascular (port-wine stains, stork bites and hemangioma). Scientists don't know what causes birthmarks.
Ron Galella, Ltd., WireImage