What are birthmarks?

Also known as: moles, café-au-lait spot, Mongolian spot, salmon patches, port wine stains, hemangioma

Birthmarks are areas of abnormal skin color, which maybe raised/lifted, in a variety of sizes, shapes, and colors that are present at birth or appear within a few weeks of birth in about 10%-30% of babies. Birthmarks are made up of pigmented cells or blood vessels and usually are of no clinical significance.

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Reviewed by: Jack Wolfsdorf, MD, FAAP

This page was last updated on: 1/29/2019 3:21:13 PM