First, different perceptions: 1. Pain does have beneficial aspects: she acts as a protective response that allows the body to avoid harm to the environment, etc.; the presence of pain prompts you to go to the physician for treatment; the physician also diagnoses and treats through pain! To put it more simply: after surgery, the operator usually analyzes your condition with the help of the degree and location of pain, but nowadays, the percentage is too small, and experience and examination means that they no longer rely on the judgment of pain. 2, the harm caused by pain: severe pain can lead to shock; acute and chronic pain makes people suffer; chronic pain after surgery is often a key factor in disability, injury and cure. Evidence-based medical statistics show that inadequate treatment of acute pain can lead to chronic pain, such as hernia leading to a chronic pain incidence of 19-56%, extracorporeal circulation surgery of 44%, hip surgery of 28%, and breast surgery of 40-60%. Second, the cost and effect: For the treatment of acute postoperative pain, health insurance reimbursement is often limited, which adds a burden to the patient. Effectively: The anesthesiologist will plan for the patient and his or her surgery and then adjust the dosage on a case-by-case basis. However, often individual differences lead to dissatisfaction in some patients. Third, complications: Perhaps we focus too much on this aspect without an overall analysis of the pros and cons Depending on the choice of postoperative analgesic drugs there are often certain complications, such as skin itching, constipation, nausea, etc., but with the updating of drugs and advances in equipment, these rarely occur. Remedial analgesic treatments in the ward such as postoperative intramuscular injections, usually dulcolax, are relatively ineffective, short-lived, and have more complications. With the awareness and emphasis on pain, with the increased demand for quality of life, with the increased focus on the prognosis after surgery, with the treatment plan of the team of anesthesiologists and operators, with the increased number of anesthesiologists able to have the time and energy (it is now difficult for anesthesiologists to leave the operating room every day) to ensure that, with the monitoring of pain classes in the 5th vital sign, our patients will benefit the most, safely and comfortably through the perioperative period and have a good prognosis.