Currently, there is no concept of thoracic medicine in large tertiary hospitals, but thoracic medicine is divided by respiratory medicine, cardiology and part of endocrinology, which is the use of antibiotics, internal medicine and other methods to treat internal system diseases, such as respiratory medicine is to treat lung and respiratory system diseases, while cardiology is the use of heart drugs to treat coronary heart disease and hypertension. Thoracic surgery is the actual use of surgical procedures, such as thoracoscopic surgery, open-heart surgery, and puncture tube surgery, to treat chest diseases. The line between internal medicine and surgery is becoming increasingly blurred, with more and more internists taking a surgical approach, and thoracic surgery is not absolutely drug-free.