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birthmark

American  
[burth-mahrk] / ˈbɜrθˌmɑrk /

noun

  • birthmarks
    plural
  1. a minor disfigurement or blemish on a person's skin at birth; nevus.


birthmark British  
/ ˈbɜːθˌmɑːk /

noun

  1. a blemish or new growth on skin formed before birth, usually brown or dark red; naevus

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of birthmark

First recorded in 1570–80; birth + mark 1

Explanation

A birthmark is a permanent spot on your skin, often dark brown colored. The actress Marilyn Monroe was famous for a small birthmark just above her lip. Most birthmarks are present from birth or soon after, and many are pigmented much darker than the surrounding skin. Strawberry and port wine birthmarks, on the other hand, are bright red. The causes of birthmarks vary, but they're almost always harmless. In the 17th century, they were sometimes called "longing marks," supposedly demonstrating the pregnant mother's longing for something before her baby was born.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

“Is that red spot on his head a rash or a birthmark I didn’t notice?”

From The Wall Street Journal Jun. 13, 2026

They are asking the public to keep an eye out for the 5-foot-7 Asian male, who has black hair, black eyes, a birthmark on his left upper shoulder and weighs around 170 pounds.

From Los Angeles Times Jul. 16, 2025

Amba, whose birthmark is one of a number of features of Sturge-Weber Syndrome, said finding self-acceptance was an ongoing journey.

From BBC Jul. 20, 2024

My little sister had a birthmark there,”’ Seiler said, recounting those who called in to the show.

From Seattle Times Sep. 7, 2023

The girl in Mrs. Janssen's pantry may or may not have had a birthmark; Mrs. Janssen doesn't remember seeing one, but admits she could have been wrong.

From "Girl in the Blue Coat" by Monica Hesse

She says she is now starting to show more of her birthmarks in public, including wearing shorts outside for the very first time during a recent spell of hot weather.

From BBC Aug. 23, 2026

Mutations in the skin, for example, occasionally resulted in unusual pigment patterns such as port-wine stain birthmarks.

From Science Magazine Aug. 15, 2023

James also wore tattoos, some which matched her birthmarks.

From Los Angeles Times Aug. 2, 2022

The finalists are examined by the priest’s wife for scars, birthmarks and other perceived defects.

From New York Times Jul. 15, 2022

They have identical birthmarks, diminutive caramel crescents over their left eyelids, and their braids hang in duplicate ropes down their backs.

From "Dreaming in Cuban" by Cristina García

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