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The Curious Bag
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Mongolian spots, also known as Mongolian blue spots, are benign spots on the skin that are deep brown, gray or bluish-black and are often mistaken for bruises. Anyone can have Mongolian spots, but there are certain people who are a much higher risk at having Mongolian spots.
Babies
Mongolian spots are birthmarks, which means people with Mongolian spots were born with them. Most spots disappear by age 5. Less than 5 percent remain at adulthood.
Africans
More than 90 percent of babies of African descent are born with some sort of Mongolian spot, according to Dr. Alan Greene's website (see the link in Resources).
Native Americans
Native American babies are just as susceptible as Africans to be born with a Mongolian spot.
Asians
More than 80 percent of Asian babies have a Mongolian spot, according to Dr. Greene, who cites the Clinical Pediatric Dermatology, 1993.
Hispanics
Hispanic babies have a 70 percent chance of having a Mongolian spot, with Dr. Greene again citing the Clinical Pediatric Dermatology, 1993.
Dark Skin
Any child with dark skin is more likely to have a Mongolian spot than a fair-skinned child. Less than 10 percent of fair-skinned infants are born with them.
Source:
Dr. Greene: What are Mongolian Spots?
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