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Freckles, also known as ephelides, are 2 mm to 4 mm tan, discrete specks or spots which develop over sun-exposed surfaces, particularly the cheeks and nose. They are most common
in fair-skinned individuals. Microscopically, the freckle is distinguished by increased melanin production. Freckles vary in color -- they may be red, yellow, tan, light-brown, brown, or black -- but they are always darker than the skin.
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