The different types of birthmarks include:
Salmon patches are thin, flat, light pink or red birthmarks. They tend to be on the back of the neck, the upper eyelids, upper lip, or between the eyebrows.
Congenital moles can grow anywhere on the body. They vary in size and shape. Most are brown.
Café au lait spots are smooth, oval birthmarks. They range in color from light brown to chocolate brown and usually are found on the torso, buttocks, and legs.
Mongolian spots are smooth, brown or blue-gray birthmarks. They are often uneven in shape and are on the lower back and buttocks.
Hemangiomas are raised birthmarks. They are blue, red, or purple. They are clumps of blood vessels that did not grow normally. Hemangiomas grow in many shapes and sizes and can grow on the skin or deeper in the body.
Port-wine stains are birthmarks that are pink-red at birth and then become a darker red-purple. Port-wine stains are blood vessels that did not grow normally. They can be small, or they can cover a large area of the body.