蒙もう古こ斑はん

noun

Mongolian spot; congenital dermal melanocytosis

Medical term for a benign, bluish birthmark commonly seen in infants of Asian, East African, or Native American descent. Often fades by childhood.

• 蒙もう古こ斑はんは、生うまれたばかりの赤あかちゃんのお尻しりによく見みられる青あおいあざです。

  A Mongolian spot is a bluish birthmark often seen on the buttocks of newborn babies.

• 蒙もう古こ斑はんは成せい長ちょうとともに自し然ぜんに消きえることが多おおい。

  Mongolian spots often fade naturally as the child grows.