最終更新日：2025/11/28
A benign, flat, congenital, usually blue to blue-black birthmark in lower back with wavy borders and irregular shape, prevalent among East Asians, South-East Asians, Polynesians, Native Americans, East Africans, and the Turkish people. It normally disappears three to five years after birth and almost always by puberty.
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Mongolian spot
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元となった辞書の項目
Mongolian spot
名詞
A
benign,
flat,
congenital,
usually
blue
to
blue-black
birthmark
in
lower
back
with
wavy
borders
and
irregular
shape,
prevalent
among
East
Asians,
South-East
Asians,
Polynesians,
Native
Americans,
East
Africans,
and
the
Turkish
people.
It
normally
disappears
three
to
five
years
after
birth
and
almost
always
by
puberty.
日本語の意味
モンゴル斑：下背部に出現する良性の先天性色素斑で、通常は青色から青黒色を呈し、境界が波状で形が不規則なもの。東アジア、南東アジア、ポリネシア、先住アメリカ人、東アフリカ、トルコ人などに多く見られ、生後3～5年以内、ほとんどの場合は思春期までに消失する。
意味（1）
A
benign,
flat,
congenital,
usually
blue
to
blue-black
birthmark
in
lower
back
with
wavy
borders
and
irregular
shape,
prevalent
among
East
Asians,
South-East
Asians,
Polynesians,
Native
Americans,
East
Africans,
and
the
Turkish
people.
It
normally
disappears
three
to
five
years
after
birth
and
almost
always
by
puberty.
（ plural ）
