a harmless skin blemish, caused by raised blood vessels just below the skin
a proliferation of blood vessels beneath the skin
a splotch on the skin, which can appear in a variety of colors, shapes and sizes
a mole or blemish that is present on the skin at birth
made up of blood vessels that collect in certain parts of the skin and that occur at or shortly after birth. Also known as vascular birthmark.
abnormality of the skin that is present at birth or shortly afterward.
A birthmark is a blemish on the skin formed before birth. They are part of the group of skin lesions known as naevi. The cause of birthmarks is unknown, but may include cellular damage due to radiation or chemicals.