Has Zhang Fei been castrated?

No, Zhang Fei's sentence "I am a swallow" was misrepresented as a eunuch. Zhang Fei, a famous soldier in Zhuojun County of Youzhou, is brave and good at fighting, and is called "the enemy of ten thousand people" with Guan Yu. He also became sworn brothers with Guan Yu and Liu Bei in Taohualin. In ancient times, only those who entered the palace as eunuchs were castrated. Zhang Fei's character is rough and arrogant, and he hates evil. He is completely unfit to be a chamberlain, and there is no sign in the Three Kingdoms that he has the idea of being a chamberlain. So Zhang Fei was not castrated.