First, the descendants of Cao Cao's understanding saw this passage and lamented that a generation of imperial doctors had come to such a tragic end. It was really embarrassing. Everyone laughs that Cao Cao is an ignorant and speechless person. If he dares to operate on Hua Tuo, his illness will be cured. While laughing at Cao Cao, we can't help asking: If I were Cao Cao, would I dare to let Hua Tuo, who was two thousand years ago, use an axe to split his head? In fact, I don't know, and Hua Tuo's craniotomy is not groundless.
Secondly, Cao Cao is a ruthless character, which is recorded in his previous ancient books. Hua tuo often reads ancient books. They must have read them. But considering the cognitive ability of people at that time, how could you imagine that such a thing would happen when you cut the seam? This is a problem. Some people think that Cao Cao is right. Even if there are many drugs or advanced equipment to support craniotomy, it is unlikely to succeed. What is Hua Tuo? What is he? A bowl of boiling marijuana and a sharp axe. When the skull is under high pressure, maybe the brain will jump out. Cao Cao fought on the battlefield for many years. He has seen countless dead people and killed countless enemies. Many people died on the spot after he split the enemy's head with a knife.
Cao Cao doesn't understand how you can make him believe Hua Tuo. The deaths of countless soldiers show that if you have a hole in your head, you are actually dead. So Cao Cao decided not to let Hua Tuo have an operation. In fact, Hua Tuo was indeed an imperial doctor, but his name was only based on people's limited cognition at that time. Besides, imperial doctors no longer existed. Hua tuo is only right in theory. Something in the car brain caused the headache. If you can take it out of your brain, the pain will stop.