A hemangioma of the skin is an abnormal condition in which excessive buildup of blood vessels on or under the skin layer occurs. It appears like a red wine- or strawberry-colored birthmark. Sometimes it may protrude out from the skin as a little bulge. Mostly it appears on the face, neck, arms and behind the ears. Hemangiomas of the skin commonly develop during early childhood or infancy and can affect both boys and girls. With passage of years it disappears or shrinks but if not than treatment methods are available to shrink these them.