Second, this story comes from the seventy-fifth chapter of Romance of the Three Kingdoms, in which Guan Yunchang curetted bones to cure poison and Lv Ziming crossed the river in white. It tells the story that Guan Yu escaped from the ban, killed Pound, and then attacked Fancheng again, but was shot in the right arm by a poisonous cold arrow. Huatuo, the imperial doctor, came to scrape the bones and detoxify him. Everyone inside and outside the account was ashen, while Guan Yu still drank and ate meat, laughing and playing chess without any pain.

Third, the real history is that Hua Tuo in history didn't treat Guan Gong with an arrow wound, and they didn't even have a chance to meet. Because Hua Tuo died in Jian 'an 13 (AD 208) and Guan Yu's poisoned arrow occurred in Jian 'an 24 years (AD 2 19), with an interval of 1 1 year, how can the dead cure the living? However, it is true that Guan Yu was killed by an arrow, which has been recorded in the biography of Guan Yu in the Three Kingdoms, and its details are similar to those described in the Romance of the Three Kingdoms, but unfortunately the name of the doctor was not written in the book.

Luo Guanzhong wrote "Doctor" as Hua Tuo, probably because Hua Tuo was a famous doctor at that time and was good at surgery, so it was not a problem to treat arrow wound. This "well-founded", coupled with the author's ingenious pen, makes the story vivid and realistic. Who doesn't believe in the authenticity of "scraping bone to cure poison"? The reflection of Zhang Guan Macelo Wong Zhao Chuan recorded that the feather tasted like a flowing arrow and penetrated his left arm. Although the wound has healed, every time it rains, the bone often hurts. The doctor said, "the arrow is poisonous, and it is poisonous to the bone." If the arm is broken, the bone will be cut to remove poison, and then the disease will be removed. " The feather stuck out his arm and let the doctor cut it. Feather clothes were smooth, so the general was invited to eat and drink relatively. Blood flowed from his arm, and a plate was full of dishes. Feather clothes drank and laughed.

Fourth, Guan Yu (? -220), the word Yunchang, was born in Hedong, Xie Liang (now Yuncheng, Shanxi), and was a famous soldier in the late Eastern Han Dynasty. He followed Liu Bei in his early days and was captured by Cao Cao. He killed Yan Liang, the general of Yuan Shao, in Bai Mapo, and called him an enemy with Zhang Fei.