They are common anomalies that appear in a variety of shapes, sizes, textures, and colors. Birthmarks can occur anywhere on the body, especially on the face and neck. Vascular anomalies are composed of blood vessels, which typically give them a pink to dark red color. Nevoid birthmarks contain melanin pigment and are usually various shades of brown or black in color. These are faint pink spots that are present on the eyelids or, most commonly, on the nape of the neck.
Stork bites are benign and generally disappear without any treatment.
Another type of vascular anomaly is called a hemangioma. This is a benign tumor that appears as a red bump on any part of the body. Often the face or eyelids are involved. About 10 to 12 percent of all children have a hemangioma. Hemangiomas are often alarming since they grow rapidly during the first six months of life.