What Causes Freckles?

Freckles are usually flat, beige, brown circular spots that typically are the size of the head of a common nail. The spots are multiple and may develop on sun-exposed skin after repeated exposure to sunlight. These are particularly common in people with red hair and a fair skin. They may appear on people as young as 1 or 2 years of age. Most freckles are uniform in color. On different people, freckles may vary somewhat in color -- they may be reddish, yellow, tan, light brown, brown, or black -- but they are basically slightly darker than the surrounding skin. They may become darker and more apparent after sun exposure and lighten in the winter.



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How do you get freckles?
Ephelides: These freckles form as a result of sun exposure and sunburns. They can appear on anyone who doesn’t protect themselves from UV rays. They show up on your face, the back of your hands, and upper body.

What increases your chance for freckles?
The credit for freckles goes to both the natural environment and genetics. Your risk for burning can increase the incidence of freckles. In a study of 523 middle-aged French women, two elements predicted the presence of freckles: frequent sunburns and a gene known as MC1R, which provides instructions for making melanin. But the gene doesn’t affect all individuals the same way. There are two type of melanin: pheomelanin and eumelanin.