What should you know about red port wine stain birthmark?

The mark is made of widened small blood vessels near the skin surface. It is usually present from birth and does not spread by contact. Colour can deepen over time, and the skin may become thicker or more textured in the affected area. A mark near the eye, forehead, or another sensitive area deserves a careful clinical assessment because location can influence follow-up.

A diagnosis is based on its appearance and history. A new or changing patch should not automatically be assumed to be a birthmark, particularly if it bleeds, ulcerates, becomes painful, or changes quickly.

Use sun protection on exposed skin and avoid picking or repeatedly rubbing the patch. Photographing it in consistent lighting can help you describe gradual changes at appointments. A dermatologist may discuss observation or vascular laser treatment; pulsed dye laser treatment is one option used for some vascular birthmarks, with suitability depending on skin, location, colour, and texture.

Ask about expected temporary redness, swelling, bruising, pigment changes, and the need for more than one appointment before choosing a procedure.

Book an assessment for a mark that has not been diagnosed, is changing, becomes raised, bleeds, crusts, ulcerates, or causes pain. Seek prompt care for sudden swelling, severe pain, or bleeding that does not stop with gentle pressure.

Does this look like a port-wine stain? Does its location change the recommended assessment, and what results and skin reactions should I expect from treatment?