Children's Health Topics - Birthmarks Return to Health Information Birthmarks Birthmarks are skin blemishes that are present at birth or appear shortly thereafter. 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.