What are Mongolian spots?Mongolian spots appear as small bruise like marks around the base of the spine and above the buttocks. Although present at birth, they fade over time so do not come under the birthmark category. The marks usually appear bluish-gray but they can also look deep brown. They have a flat, irregular shape and no texture. They usually measure no more than a few centimeters wide. Although the spots usually appear on the back, some people have blue spots on their arms and even face. As you travel around Mongolia, you may meet people with these marks. Who gets Mongolian blue spots?A man called Erwin Balz discovered blue spots on Japanese infants. He named them 'Mongolian spots' believing them characteristic of Mongoloid races. Mongolian blue spots commonly occur among dark skinned people. Most East Asians, East Africans, and people descended from Native Americans carry the mark when born. But the blue spot also occurs among fair skinned people. Between one and ten percent of European children are born with a blue spot.
Are Mongolian blue spots dangerous?Mongolian blue spots have no association with any illness. For Asians, they occur as frequently as freckles. The spots usually begin to fade by the age of three and most have disappeared by five years. By puberty only five percent of blue spots remain—usually the ones which appear in more unusual positions. Since the spots fade quickly, treatment is not normally recommended or necessary. Some people cover prominent spots with cosmetics. The Japanese have reported some success with laser removal treatment. So, where do Mongolian blue spots come from?Mongolian blue spots and eye color are produced by the same body cells.
In the case of Mongolian blue spots, the cells become trapped as they travel through the body. This usually happens while the baby develops in the womb or in the first few weeks of life. The closer the trapped cells lie to the skin's surface the browner the spot looks. The cells usually become trapped in the bottom layer of the skin and hence appear bluish in color. Anything else I should know?Although harmless, the spots can look like bruises. Occasionally, well-meaning social workers have mistaken the Mongolian spot for a bruise and taken children into care. If you adopt or have a child with blue spots, then get them officially documented to prevent misunderstandings about child abuse. Get a doctor or health official take a few photographs for the official records. No special test is needed to diagnose a Mongolian blue spot. A doctor can diagnose them simply by looking. Why are there no photographs of the Mongolian blue spot on this site?I don't want any misunderstandings either. My son had a Mongolian spot but I'm sure he wouldn't want me to publish any photos. Related Pages
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