Why do Asians have a blue spot?

Causes. Dermal melanocytosis is common among people of Asian, Native American, Hispanic, East Indian, and African descent. The color of the birth mark is from a collection of melanocytes in the deeper layers of the skin. Melanocytes are cells that make the pigment (color) in the skin.

What does a blue dot on your skin mean?

Moles, also called nevi, can appear on your skin in a variety of shapes, sizes, and colors. One type of mole is the blue nevus. This mole gets its name from its blue color. Although these moles may seem unusual, they're generally benign and not a cause for concern.

Do Asians get Mongolian spots?

Mongolian spot is the most frequently seen pigmented skin lesion in newborns. They can be present at birth or develop within the first few weeks of life. These 'birth marks' can appear in all racial groups, but as the name Mongolian implies, they are most common in Asian and Native American infants.

What race has Mongolian spots?

Mongolian spots (MS) are congenital birthmarks seen most commonly over the lumbosacral area. They are bluish-green to black in color and oval to irregular in shape. They are most commonly found in individuals of African or Asian ethnic background.

Do Chinese people have Mongolian spots?

Mongolian spots are frequent among the Mongolian and Negroid children, but relatively rare in whites. The appearance and rate of disappearance of these spots in the Japanese has been studied systematically and reported.

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Do black babies have Mongolian spots?

Congenital melanocytosis, previously known as Mongolian spots, is a very common condition in any part of the body of dark-skinned babies. The spots are flat, gray-blue in color (almost looking like a bruise), and can be small or large.

Can a white baby have a Mongolian spot?

How common are they? According to a 2013 review , slate gray nevi affect about 10% of white babies, 50% of Hispanic babies, and 90–100% of Black and Asian babies.

What does a blue birthmark mean?

They're formally called congenital dermal melanocytosis. These marks are flat and blue-gray. They typically appear on the buttocks or lower back, but may also be found on the arms or legs. They're generally present at birth or develop soon after. These birthmarks are noncancerous and present no health danger.

Are Mongolian spots genetic?

Mongolian spot is a hereditary developmental condition caused by entrapment of melanocytes in the dermis during their migration from the neural crest into the epidermis.

Why do I have a blue birthmark?

Congenital dermal melanocytosis — more commonly known as Mongolian blue spots — is a kind of birthmark commonly found in newborns. Also known by the name slate gray nevus, Mongolian blue spots often appear right at birth or in the first few weeks of life. They are harmless and do not need to be removed.

Which race has the most birthmarks?

The percentages of different ethnicities in our whole referral cohort revealed a substantial preponderance of white ethnicity in all birthmark groups, as would be expected for our geographical referral population, except for PPV and EDM (Fig. ​ 2a).

Do Chinese babies have Mongolian spots?

Mongolian spots were present in all newborns and disappeared slowly until 6 years of age when the rate of disappearance increased. At 10 years of age, none were found. The overall incidence regardless of age was 58% in boys and 53.3% in girls.

What is the mark of Genghis Khan?

Every Mongolian baby is born with a blue birthmark on their back and it is known as the Mongolian spot worldwide. The Mongols has worshiped the eternal blue sky from ancient times and considered this birthmark as a heavenly seal for Mongolians only.

Is blue nevus rare?

Blue nevus is a benign neoplasm composed of aberrant melanocytes located in the dermis, which can be found in 0.5%–4% of the white population.

What does it mean when you have a Mongolian birthmark?

Mongolian spots are benign and are not associated with any conditions or illnesses. A newly born infant is also called a neonate. Mongolian blue spots are flat bluish- to bluish-gray skin markings commonly appearing at birth or shortly thereafter.

Do all biracial babies have Mongolian spots?

Mongolian spots are present on over 90% of Native Americans and people of African descent, over 80% of Asians, over 70% of Hispanics, and just under 10% of fair-skinned infants.

Do Mongolian blue spots get bigger?

The typical Mongolian spot is noted at birth and size may vary from a few millimeters to more than 10 cm. They may increase in size for 1 to 2 years and peak in color intensity at 1 year. They become less noticeable and eventually fade during the first few years of life but they occasionally persist.

What are Strawberry birthmarks?

A strawberry hemangioma is a clump of tiny blood vessels that forms under the skin. It causes a raised red skin growth that may be present at birth or develop during infancy. A hemangioma looks like a strawberry birthmark, but it's actually a benign (noncancerous) tumor. You may also hear the term vascular birthmark.

Does the Mongolian birthmark go away?

Mongolian spots or slate gray nevi are a kind of birthmarks that are flat, blue, or blue-gray. They appear at birth or in the first few weeks of life. Most birthmarks go away with time, although some will persist until puberty. In such a case, it is likely that the person will remain with the mark for life.

Do Native Americans have Mongolian spots?

Mongolian Spots:

They occur in over 90 percent of Native American, Asian, Hispanic, and African American babies. They are also seen in 10 percent of Caucasians, especially those of Mediterranean descent. They occur most commonly over the back and buttocks.

Are there any Khan's left?

An international group of geneticists studying Y-chromosome data have found that nearly 8 percent of the men living in the region of the former Mongol empire carry y-chromosomes that are nearly identical. That translates to 0.5 percent of the male population in the world, or roughly 16 million descendants living today.

Who has the most descendants in history?

1. Eve. According to the Biblical account, Eve is the mother of all humanity, giving her nearly 7 billion living descendants, and well over 100 billion since time began. However, a 1980 study suggests that an actual Mitochondrial Eve lived 100,000-200,000 years ago in Africa.

Why do Japanese babies have blue butts?

Science tells us that melanin-containing cells trapped in the deeper dermis during embryonic development cause our strange coloring. The result is a blue birthmark, often found on the bottoms of East Asian babies, that dissipates by age five.

What are blue birthmarks called?

Congenital dermal melanocytosis (formerly called Mongolian blue spots) are a type of birthmark. The term congenital dermal melanocytosis refers to one or more birthmarks. They are flat blue or blue/grey spots with an irregular shape that commonly appear at birth or soon after.

Who are the modern day Mongols?

Present-day Mongol peoples include the Khalkha, who constitute almost four-fifths of the population of independent Mongolia; the descendants of the Oirat, or western Mongols, who include the Dorbet (or Derbet), Olöt, Torgut, and Buzawa (see Kalmyk; Oirat) and live in southwestern Russia, western China, and independent ...