Questions and Answers About Mongolian Baby Spot

The baby's Mongolian spot has little to do with Down syndrome, although the name may generate some confusion. Its name is due to the fact that it is frequent in the eastern population. In Mongolia, in fact, it can be seen in up to 90% of newborns. Here we reveal more about this skin lesion.

What is its scientific name?

Congenital dermal melanosis.

How is?

It is a bluish-grayish spot, of variable size (1-20 cm), and round or oval in shape. Its color is due to an abnormal accumulation of melanocytes.

Where is it located?

Typically, it is located in the lumbosacral region and / or buttocks. Other less frequent locations: back, shoulders, scalp, extremities.

When does it usually appear?

It is often present at birth, although it can also appear during the first two weeks of life.

In what type of children is it most common?

As we discussed before, it affects 90% of oriental children, 80% of black children; 40% of Latin Americans; and less than 10% of European children.

What is its evolution?

Over the first two years it tends to grow. Later, it tends to clear up.

Should we treat the Mongolian stain?

It is not usually accurate, given its natural evolution towards spontaneous resolution. In unusually persistent cases, laser therapy has been used.

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