1. A Port Wine Stain (PWS) Birthmark, also called nevus flammeus, is a congenital, cutaneous vascular malformation

2. Birthmarks may be a symptom Very occasionally, port-wine-stain Birthmarks may indicate the presence of a rare underlying disorder, including: Sturge-Weber syndrome – symptoms include a port-wine-stain birthmark on the upper eyelid and forehead, and abnormalities of the brain (and sometimes of an eye).

3. Common types in this category include salmon patch, infantile hemangioma, capillary malformation (port wine stain), Pigmented Birthmarks are usually brown and are caused by a cluster of pigmented cells.

4. Take this visual tour of cafe au lait spot (pictured), port-wine stain and other common Birthmarks to find out when your child might need to see a doctor.