This is the most common "dark" speculation: Since doctors cannot apply for patents for their expertise in treating certain diseases, the medical records of "Tian Shu" can set up natural technical barriers to monopolize and protect doctors' medical records. Unique secret recipe.
Especially for traditional Chinese medicine practitioners who rely more on experience, the prescriptions are often based on the secret that is said to be passed down from male to female for three hundred years. If there is no "heavenly book", you can just buy a cat or a dog for 5 yuan. If you can learn it secretly just by paying the registration fee, can you still be the only one in the future? However, the medical community generally denies this: If the medical record is regarded as an objectively encrypted telegram for ordinary people, then most medical workers have mastered the code. When medical students take diagnostic courses, there will be a chapter on medical record writing, explaining the standard format for writing medical records. After mastering the format of medical records and commonly used medical terms and drug names, doctors and pharmacists can generally still understand medical records written by their colleagues. Interestingly, sometimes the doctor's "heavenly book" is too stylized, and only pharmacists who have cooperated with the hospital for many years can decipher it. Objectively, this prevents patients from going to other pharmacies to buy medicines. The so-called "rich water leaves nothing to outsiders."