Amanda Vanessa Mlambo, a Durban resident who was born with birthmarks on her right leg. Picture: Xolani Dlamini. TODAY, May 15, the world observes International Vascular Birthmarks Awareness Day ...

According to the Vascular Birthmarks Foundation, which partnered with Shookus on this campaign, about three out of every 1,000 people are born with the pink-to-reddish mark, which gets its name ...

Any pink, purple, or blue birthmark is a vascular birthmark. Other vascular birthmarks include port-wine stains (nevus flammeus) and hemangiomas (often referred to as strawberry birthmarks).

Sophie was born with a port wine stain, a vascular birthmark that she carries with pride every day. This type of birthmark affects approximately 1 in every 3,000 children, growing as they grow.

Port wine stains - a vascular birthmark caused by abnormal development of blood vessels in the skin - are usually nothing to worry about and around three in every 1000 children have one.

Reagan Baylee Campbell, 25, from Los Angeles, was born with a vascular birthmark known as a port-wine stain. A port-wine stain is a capillary malformation in the skin, causing a dark red stain.

Vascular birthmarks can be internal, or form an external birthmark and can be disfiguring, especially if formed on the face.