freckle

skin pigmentation
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Share
Share to social media
URL
https://www.britannica.com/science/freckle
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

Also known as: ephelides, ephelis
Also called:
ephelis
Plural:
ephelides
Related Topics:
human skin
melanin
skin

freckle, a small, brownish, well-circumscribed, stainlike spot on the skin occurring most frequently in red- or sandy-haired individuals. In genetically predisposed individuals who have been exposed to the ultraviolet radiation of sunlight, production of the pigment melanin increases in the pigment cells of the skin (melanocytes); the number of melanocytes does not increase. Freckles do not form on surfaces that have not been exposed to the sun. The freckles usually appear after the age of five and tend to fade somewhat in adults. Apart from avoiding sunlight, there is no known way of preventing them. They may, on occasion, be confused with pigmented nevi.