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    Childhood Skin Problems

    Mongolian spots on baby's back

    Mongolian Spots

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    SPL / Photo Researchers, Inc.

    Mongolian spots are very common in any part of the body of dark-skinned babies. They are flat, gray-blue in color (almost looking like a bruise), and can be small or large. They are caused by some pigment that didn't make it to the top layer when baby's skin was being formed. They are harmless and usually fade away by school age.

    In most cases, no treatment is needed for the birthmarks themselves. When birthmarks do require treatment, however, that treatment varies based on the kind of birthmark and its related conditions. Read more about newborn's skin and rashes.

    Reviewed on November 10, 2014

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