Why does the little toenail have two petals?

First, take off your shoes and socks and look at your little toes. Is the nail on it one or two?

Why is the toenail divided into two petals? Let's solve this mystery together today.

Why does the little toenail crack?

Cleft toenail is medically called petal nail, also called little toe syndrome.

Some people have one foot, some people have two feet; Some people divide it into two petals, and some even divide it into three petals; Some people are born, and some people appear after they grow up.

So, why split? There are two kinds of legends:

I heard that my little toenail has two petals, which means that I am a descendant of pure Han nationality.

It is also said that more than 640 years ago, in order to fill the population of Henan, Shandong and Hebei, the court moved Shanxi people to the Central Plains. Before the "distribution", soldiers will also cut off their little toenails, causing cracks and passing them on from generation to generation.

Is the little toenail divided into two petals a Shanxi immigrant?

Many people think this statement is funny. The knife wound at that time was a trauma. Besides, after more than 600 years, how can it be passed down from generation to generation? Don't tell me, a survey proves that this is really related to Shanxi immigrants.

In 2005, Associate Professor Bian Jianchao and graduate student Hao Weiguo of Fudan University made an investigation on genetics.

Through the investigation of Shanxi, Shaanxi, Henan, Jiangsu, Zhejiang, Jiangxi and Fujian provinces, it is found that the proportion of petal-shaped nail owners decreases from Shanxi to southeast, which is consistent with the historical facts of immigrants.

Is the little toenail divided into two petals pure Han nationality?

This is a narcissistic idea. In fact, petal-shaped armor is not a unique sexual feature of Han people, not everyone in Han people has it, and not all people with petal-shaped armor are Han people, but it may be the product of national integration.

After all, not all the immigrants were Han Chinese. Before the Great Migration of Shanxi, people were already in a mixed state. Among the immigrants are Han Chinese, Mongolian aristocrats, Semu people and China conference semifinals. It is very unrealistic to distinguish pure Han people.

Researchers at Fudan University speculate that long petal-shaped nails may be a toe mutation caused by friction caused by ancient Chinese people working without shoes, and have become a gene preserved to this day; It may also be the physiological characteristics of ethnic integration.

In other words, no matter which possibility, it is only a physiological feature. Whether it exists or not, it will not be beneficial to health or harmful. When it grows, it will be safe.