Congenital dermal melanocytosis
Mongolian spots are flat, blue or blue-gray skin markings that commonly appear at birth or shortly thereafter.
See also: Rashes
Mongolian spots; Congenital dermal melanocytosis; Dermal melanocytosis
Mongolian blue spots are common among darker skinned persons, such as those who are of Asian, East Indian, and African descent.
Mongolian spots are non-cancerous skin markings and are not associated with disease. The markings may cover a large area of back.
Occasionally, Mongolian blue spots are mistaken for bruises, which can raise a question about possible child abuse. It is important to recognize that Mongolian blue spots are birthmarks, NOT bruises.
- Blue or blue-gray spots on the back, buttocks, base of spine, shouders, and other body areas
- Flat area with irregular shape and unclear edges
- Normal skin texture
Exams and Tests
No tests is needed. Your doctor can diagnose this condition by looking at the skin.
No treatment is necessary or recommended.
The bluish discoloration often fades in a few years and is almost always gone by adolescence.
There are no complications.
When to Contact a Medical Professional
All birthmarks should be examined by the health care provider during a routine newborn examination.
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