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Dr. Alpana Mohta Ranka, MD, DNB, IFAAD, is a dual-board-certified dermatologist with over 90 research publications in peer-reviewed scientific journals.


Mongolian Spot: Tips to Identify and a Picture

A Mongolian spot, commonly known as a "Mongoloid spot," is a benign, blue-gray birthmark. Often found in infants, it typically fades as a child grows. While many parents might be alarmed upon seeing it for the first time, it's not as scary as it might look.

This article provides a detailed overview of Mongolian spots, supported by a picture and pediatric dermatology insights.


Table of Contents


Understanding Mongolian Spots: Origins and Appearance

Mongolian spots are congenital dermal melanocytoses. These flat, blue-gray patches appear due to the entrapment of melanocytes (pigment-producing cells) in the deeper layers of the skin. Unlike superficial birthmarks or bruises, Mongolian spots are present from birth or shortly after.

Mongolian Spot Picture

Picture of Mongolian spot on an infant's buttocks and lower back.

These spots are primarily found at the base of the spine, the buttocks, and the back, though they can also be present on other body parts. Their size can vary from small, dime-sized spots to larger patches.

Importance of Diagnosis and Differentiation

While Mongolian spots are harmless and typically fade by school age, it's crucial to differentiate them from other conditions, such as:

  • Bruises: Unlike bruises, Mongolian spots do not change color over time or cause discomfort.

  • Melanocytic Nevus: This is a type of mole. It's darker and might have hair growing from it.

  • Blue Rubber Bleb Nevus: A rare vascular anomaly that feels soft and rubbery.

Having clear Mongolian spot pictures can assist parents and caregivers in making these distinctions. If uncertain, always consult with a pediatric dermatologist.

Addressing Concerns and Myths

Several myths surround Mongolian spots:

  • Genetic Predominance: While these spots are more common in people of Asian, African, and Indigenous descent, they can appear in any ethnicity.

  • Permanent Nature: Most Mongolian spots fade by age 6, though some might remain into adulthood. These are benign and are not indicative of any underlying health concerns.

When to Consult a Dermatologist

It's recommended to consult a dermatologist:

  • If the Mongolian spot changes in appearance.

  • To differentiate it from other skin conditions.

  • If there are other accompanying symptoms or skin abnormalities.

What is the History Behind the Term Mongolian Spot?

The term "Mongolian spot" has historical origins reflecting outdated and inappropriate ethnographic classifications. German anthropologist Erwin Bälz first described it in the late 19th century.

Bälz observed the condition in Japanese infants and named it "Mongolian" because he believed it demonstrated a link between Asian populations, particularly referencing the Mongoloid racial classification, commonly used in anthropological circles then.

This racial classification system, including terms like "Caucasoid" and "Negroid," is now considered scientifically inaccurate and culturally insensitive. The categorizations were overly simplistic and perpetuated stereotypes.

While Mongolian spots are more commonly found in Asian, African, Native American, and Hispanic populations, they can appear in babies of any race.

In modern medical settings, especially outside of North America, the term "dermal melanocytosis" or "congenital dermal melanocytosis" is often used as a more neutral and descriptive term. However, "Mongolian spot" remains in common parlance in many places, even if its origins are based on dated and problematic notions of race and anthropology.


Mongolian spots are a common type of birthmark that many infants have. Armed with knowledge, understanding, and clear Mongolian spot pictures, parents and caregivers can be reassured of their benign nature.

If in doubt, consult with a dermatologist for expert advice and peace of mind.


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