In medical clinics, surgical procedures are usually categorized into four grades based on the difficulty of the operation, the complexity of the procedure, and the degree of risk involved in the procedure: Grade I, Grade II, Grade III, and Grade IV. They are described as follows:
Level 1 surgery usually refers to the operation is relatively simple, technical difficulty and low risk of surgery, such as appendectomy, circumcision and so on.
Level II surgeries are those with uncomplicated procedures, average technical difficulty and moderate risk, such as hernia repair surgery.
Level III surgeries refer to surgeries that are more complex and risky, such as laparoscopic cholecystectomy, laparoscopic appendectomy, and modified radical surgery for breast cancer.
Grade IV surgery refers to all kinds of surgeries that are complicated and risky, such as pancreatic or duodenal resection, radical surgery for colon cancer, and so on.
It is recommended that patients who need surgery should go to regular medical institutions as soon as possible, actively improve relevant examinations, identify the causes of the disease, clarify the condition, and carry out corresponding treatment under the professional guidance of doctors.