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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Signs and Symptoms
Blue-gray spots may be single or multiple, and they range in size from a few millimeters to 10 centimeters or more in diameter. They are present at birth and, due to their appearance, can be confused for a bruise.
Last Modified: 2 Sep 2009