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.
Review Date 4/16/2019
Updated by: Michael Lehrer, MD, Clinical Associate Professor, Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.