The boundaries of internal medicine and surgery are not static, but are constantly changing with the development of medicine. The earliest medical and surgical division is mainly based on the use of the knife instead of the knife as the main difference. Anything that requires a knife is called a surgical disease, and the one that does not require an operation is collectively called an internal medicine disease. With the development of social economy and the advancement of scientific and technological equipment, medicine has gradually shown the development trend of "internal surgery, minimally invasive surgery, and popularization of anesthesia".

At present, many medical examinations and treatments are surgical methods, and it is no longer possible to distinguish internal medicine or surgery. For example, the examination and treatment of gastrointestinal endoscopy are now done by physicians. Another example is the invasive examination and treatment of heart and cerebrovascular angiography, thrombosis, and stent placement. At present, most hospitals are also operated by internal cardiovascular doctors and neurologists. Physicians are becoming more and more enthusiastic about using surgical methods to solve medical problems.

The surgeon's minimally invasive surgery has become more popular with the transformation of medicine to biology, society, and psychology. Who doesn't want to maintain a healthy, complete, and beautiful body, let alone suffer less trauma? Surgicalization of internal medicine and minimally invasive surgery have become the development trend of modern medicine.