Typically, females are less than 160 meters (5 feet 3 inches) is called a small girl. However, this is only a general standard, and in fact this standard will vary depending on factors such as country, region, age and cultural background. In some East Asian countries, such as China, Japan, South Korea, etc., the average height is relatively short due to genetic and nutritional reasons, so this standard may be more stringent.
There is indeed a certain difference in height between the north and the south. Generally speaking, southerners are slightly shorter than northerners, mainly due to the hot and humid climate in the south, which is suitable for growing food crops such as rice, while the climate in the north is dry, which is suitable for raising livestock and growing food crops such as wheat, so the staple food of southerners is mostly rice, while northerners are mainly pasta. For a long time, southerners were relatively short, while northerners were relatively taller.
However, with the changes in modern food and lifestyle, the height gap between the north and the south is gradually narrowing, and it is not absolute. In addition, height is also affected by various factors such as genetics, nutrition, and environment, so everyone's height is different and cannot be generalized.