Northerners have high noses and thin lips; Southerners have shorter noses and thicker lips. Because northerners are pure Mongolians, because there are many ethnic minorities in the south, the Mongolian characteristics of Han nationality are not obvious, and the physical characteristics of southerners are closer to Japanese and Koreans. Besides eyes, the eyes of Japanese and Koreans are also Mongolian.

Note: "Mongolian Leah" is a general term, not a Mongolian.