Blue-gray spots (Mongolian spots) appear as gray to blue colored, flat, "bruise-like" areas of skin. Blue-gray spots (Mongolian spots) typically occur on the trunk. Here, however, is a small area involving the hand. Blue-gray spots (Mongolian spots) can cover the entire buttocks, as in this newborn. Blue-gray spots (Mongolian spots) typically occur on the buttocks and trunk; rarely, they can occur on the legs and arms.
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Mongolian Spot (Blue-Gray Spot)  A parent's guide for infants and babies

Picture of Mongolian Spot (Blue-Gray Spot): Blue-gray spots (Mongolian spots) appear as gray to blue colored, flat, "bruise-like" areas of skin. Divider line
Blue-gray spots (Mongolian spots) appear as gray to blue colored, flat, "bruise-like" areas of skin.
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Who's At Risk
Blue-gray spots are seen in approximately 90% of blacks and Native Americans, roughly 80% of Asians, 70% of Hispanics, and between 5–10% of whites. Generally, male and female infants are equally affected, although some studies suggest a slightly higher incidence of these birthmarks in males. Additionally, full-term infants are more likely to have blue-gray spots than preterm infants.
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Last Modified: 2 Sep 2009
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