Birthmarks are areas of discolouration on the skin which are present from birth and are often permanent. Vascular birthmarks are usually red, pink or purple in colour, and are caused by an abnormality in the skin’s blood vessels. Examples of vascular birthmarks include salmon patches, hemangiomas and port-wine stains (nevus flammeus). Brown pigmented birthmarks are usually caused by clusters of melanin (pigment) in the skin and include Moles (congenital nevi), Café au lait spots and Mongolian blue spots. Birthmarks can occur on any part of the body and vary in any shape, size and/or color.