Mongolian blue spots

Mongolian spots; Congenital dermal melanocytosis

Dermal melanocytosis is the name of a kind of birthmark that is flat and blue, or blue-gray in color. They appear at birth or in the first few weeks of life. Dermal melanocytosis was formerly called Mongolian blue spots.

Mongolian blue spots

Mongolian blue spots are flat bluish- to bluish-gray skin markings commonly appearing at birth or shortly thereafter. They appear commonly at the base of the spine, on the buttocks and back and also can appear on the shoulders. Mongolian spots are benign and are not associated with any conditions or illnesses.


A newly born infant is also called a neonate.



Exams and Tests


Outlook (Prognosis)

When to Contact a Medical Professional