There is no uniform answer to this question, most patients will see results within a short period of time after surgery, such as normal in two or three days, some need a month, and the longer two or three months. However, the ultimate goal of the surgery is the same, which is to ultimately reduce blood glucose and return to normal levels. Generally speaking, it depends on the actual situation of the patient, such as their own pancreatic islet function, if the islet damage is small, the recovery will be relatively faster, and if the damage is large, it will take a longer time. Before the operation, the doctor will predict the effect of the operation according to the patient’s examination results, we must be based on their own actual situation, do not be too anxious, everything has a process. Moreover, for patients with poor pancreatic function or poor expected recovery, our hospital will not give patients surgery, and those who can have surgery are certainly expected to have the effect of treatment. All of these require strict preoperative examination and evaluation, not just any patient directly to the operation, that is not only irresponsible to the patient, but also irresponsible to themselves. However, it should also be emphasized that the postoperative rehabilitation management also has a great impact on the effectiveness of the surgery, the doctor in the patient’s discharge, will be based on the patient’s actual situation, to develop a personalized and targeted treatment plan, such as diet, exercise and work and rest, etc., there are a number of arrangements and guidance, the patient in accordance with the do not have a major discrepancy, you can achieve good results.