Japan has been learning from Chinese culture, why were eunuchs prevalent in ancient China and why not in Japan?

The eunuch is a deformity born of feudal society, the eunuch exists to serve the king and to prevent relations with the binfei in the palace. Japan is a small country, they visit China, bring back a lot of technology and resources, but for the eunuchs this system did not develop, there are many reasons.

First of all, the ancient Chinese monarch was around, there are a lot of women, they are the king's subordinate, so many women, are ministers or other countries into the tribute, the king can not take care of each binfei. Some of the courtesans would be lonely after staying for a long time, and the monarch was afraid that they would mess up and have sex with the men in the harem, that's why he castrated all the men in the harem.

The men who were castrated were just odd jobs in the palace, doing menial labor. But in Japan, the emperor did not need so many people to serve him, and the cost of so many handymen, who needed regular body checkups, was so high that the Japanese royal family could not afford it.

Secondly, according to historical records, the attendants of the harem of the Japanese court were basically designated to a specific family. This family basically served the Emperor on a daily basis, and people from these families basically never had relationships, so there was no need to introduce the system of eunuchs.

Finally, castration was very dangerous in ancient times, and the ancient castration technology was not up to the task of ensuring that a person did not lose his or her life, so in ancient times castration tended to kill some people. These castrated people were often men who were sold by poor families to do hard labor in the palace.

Historical records show that eunuch castration had a 20 percent mortality rate. Japan, at that time, not only had fewer livestock, but also a smaller population, and they could not afford such sacrifices, so they did not implement the eunuch system.