It is said that Pean Jia is not necessarily a pure Han Chinese. What exactly is Pean Jia?

Many people will find that the nails on their little toes are in two halves, and the two sides are not as big as one. Some people think this is a disease. We call this kind of nails called flap nails. It is actually a genetic trait.

The School of Public Health of Fudan University conducted an investigation and study on the strange phenomenon of valve nails. The results of the investigation may have a certain relationship with the region. This first round of surveys investigated the occurrence probability of valve nails in seven provinces: Shanxi 79.17%, Shaanxi 79.51%, Henan 63.74%, Jiangsu 62.45%, Zhejiang 62.54%, Jiangxi 36.29%, and Fujian 37.80%. Moreover, the survey also found that 1.18% of the population has tri-petal nails. Not only that, there is also a rumor in the world that petal armor is actually a symbol of pure Han people.

According to the older generation, people with petal armor come from under the big locust tree in Shanxi. In the early Ming Dynasty, wars continued to cause serious population decline in Hebei and Henan provinces, but Shanxi still had a large population. In order to solve the pressure from population and economic stagnation, Zhu Yuanzhang and Zhu Di moved the Han people in Shanxi to the southeast.

But the immigrants were reluctant to leave their hometown, so everyone had a knife on their little toenails, and said that if they encounter cracks or splits in their little toenails in the future, they must be from Shanxi Dahuai. Relatives under the tree. Of course, there is no way to verify this kind of folk statement, and we have no way of knowing its authenticity. Modern medicine also calls flat toes as metatoes. In fact, metatoes are an autosomal dominant trait. In other words, what we call flap nails is actually a genetic trait. If your ancestors have this symptom, then there is a certain chance that you also have flap nails.