Hua Tuo has been practicing medicine for decades and mastered various medical methods. It is said that he has the ability to bring back the dead. However, many heroes died of dysentery during the Three Kingdoms period, and it is conceivable how inadequate the medical level was at that time. As we all know, Cao Cao is a lean and suspicious man. He would rather be conceited and let the world bear him. In the face of Hua Tuo's operation of sweeping his face with an axe, anyone will think that Hua Tuo is killing people instead of saving people. At present, the success rate of craniotomy is only about 60%, what's more, a dysentery can kill a brave general at that time, so craniotomy will die.
Even if Cao Cao is willing to let Hua Tuo operate with an axe, Hua Tuo's pain can be solved with hemp boiling powder. As for bacteria, the technology at that time could not achieve a sterile environment. I think Hua tuo disinfected his tools with fire at most, but it was still in vain. After infection, Cao Cao will die, and the chance of success is zero. If Hua Tuo had the ability to perform aseptic surgery, Cao Cao would not be infected.
Craniotomy is bound to cause massive bleeding. How to solve the massive bleeding problem faced by Hua Tuo? I don't think Hua tuo's medical skills at that time could stop the problem of massive bleeding, otherwise there would not be such a huge number of deaths due to injuries on the battlefield. Some people may object that massive bleeding died on the battlefield because there was no Hua Tuo present, and Hua Tuo's imperial doctor was a imperial doctor. If massive hemorrhage can be easily solved here, compared with other doctors' medical skills, it will not be helpless in the face of massive hemorrhage, so it is absolutely certain that Hua Tuo has no ability to solve massive hemorrhage.
Blood source is also an important issue. How did Hua Tuo give blood to Cao Cao to maintain his body function, and how did he know his blood type? Massive bleeding stumped Hua Tuo, let alone surgery. There is a more important problem. The human brain is the most important part of the human body, and its structure is quite complicated. It is difficult to understand the brain thoroughly with current medical technology.
At present, medicine has not fully grasped craniotomy, and a little carelessness will lead to death on the spot. Think about the tools Hua Tuo used: axe, axe. However, important tools say that this is two sides and one axe. What is the mistake of the axe? Now the error of medicine is nanometer, and the error of axe is more than centimeter. If you chop it in the wrong place, Cao Cao will die.
In ancient times, the success rate of craniotomy was completely zero. No matter how high the medical skill is, there is no guarantee of wound infection, massive bleeding, mistakes and other problems. A small mistake can be fatal, and Hua Tuo can't have such a difficult operation. The reason why Hua Tuo was regarded as an imperial doctor by later generations was mainly due to medical ethics, and his contribution to later medicine was not an omnipotent god.