A child may have one or several. At least one Mongolian spot is present on over 90% of Native Americans and people of African descent, over 80% of Asians, over 70% of Hispanics, and just under 10% of fair-skinned infants (Clinical Pediatric Dermatology, 1993).
Do black babies have Mongolian spots?
Congenital melanocytosis, previously known as Mongolian spots, is a very common condition in any part of the body of dark-skinned babies. The spots are flat, gray-blue in color (almost looking like a bruise), and can be small or large.
Do Caucasian babies get Mongolian spots?
Although named after a country in Asia, Mongolian spots can be found in any baby with relatively dark skin, including the majority of babies of Native American, Asian, Hispanic or African-American descent. In contrast, fewer than 10% of Caucasian infants have Mongolian spots.
Are all babies born with Mongolian spots?
Mongolian spot is the most frequently seen pigmented skin lesion in newborns. They can be present at birth or develop within the first few weeks of life. These ‘birth marks’ can appear in all racial groups, but as the name Mongolian implies, they are most common in Asian and Native American infants.
What race has Mongolian spots?
Mongolian spots (MS) are congenital birthmarks seen most commonly over the lumbosacral area. They are bluish-green to black in color and oval to irregular in shape. They are most commonly found in individuals of African or Asian ethnic background.
Why does my baby have Mongolian spots?
What causes Mongolian blue spots? Mongolian blue spots appear on the skin at or shortly after birth. The spots appear when melanocytes (cells that produce pigment, or melanin) remain in the deeper skin layer during embryonic development.
How do you tell the difference between a Mongolian spot and a bruise?
They’re sometimes mistaken for bruises thanks to their blue-gray color, round and irregular shape, and flat texture. But unlike a bruise, they don’t hurt at all and don’t change color or shape quickly the way bruises often do. Some of these blue spots are pinhead tiny, while others can be three inches or more.
Why do they call it a Mongolian spot?
Despite the name, Mongolian spots have no known anthropologic significance, except for being more common in darker-skinned infants. Mongolian spots are nothing more than dense collections of melanocytes, the skin cells which contain melanin, the normal pigment of the skin.
What are Mongolian spots called?
Mongolian spots; Congenital dermal melanocytosis. Dermal melanocytosis is the name of a kind of birthmark that is flat, blue, or blue-gray. They appear at birth or in the first few weeks of life. Dermal melanocytosis was formerly called Mongolian blue spots.
Is Mongolian blue spot hereditary?
Mongolian spot is a hereditary developmental condition caused by entrapment of melanocytes in the dermis during their migration from the neural crest into the epidermis.
How long before Mongolian spots disappear?
Also known as blue-gray spots and congenital dermal melanocytosis, the marks are often present at birth but may also appear during the first weeks of life. They usually disappear by the age of about 3–5 years, but they can remain into adulthood.
Why do I have a blue spot on my skin?
Many conditions can cause your skin to have a bluish tint. For example, bruises and varicose veins can appear blue in color. Poor circulation or inadequate oxygen levels in your blood stream can also cause your skin to turn bluish. This skin discoloration is also known as cyanosis.