内眦赘皮与种族差异有着密切的联系，最常见于中亚、北亚、东亚等地区的蒙古人种中，故又称“蒙古皱襞”。

It has close relationship with racial difference. It exists in Mongolian inCentral Asia, North Asia and East Asia mostly, so it is also called "mongoloid fold".

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本文对内蒙古林西县井沟子遗址西区墓地出土的春秋—战国时期的颅骨进行了人类学的考察，该组颅骨在种族特征上可归入现代亚洲蒙古人种中的北亚人种范围。

In this article, twenty ancient human skulls(9 male, 11 female) unearthed from the Spring and Autumn-Warring states period cemetery at the Jinggouzi site in Linxi county, Inner Mongolia, were studied.

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