The average length of stay for initial hospitalization for diabetic patients is about 5-7 days, depending on the patient’s blood glucose level at the time of consultation and the level of the hospital. On the one hand, the initial hospitalization of diabetic patients requires more tests, such as biochemical tests, pancreatic function tests, glycated hemoglobin, urine microalbumin, fundus tests, and abdominal ultrasound. In addition, if the patient’s blood glucose level is high, he or she will be given an insulin pump for intensive treatment in the hospital, and then the subsequent treatment plan will be decided according to the patient’s islet function. If the patient is diagnosed with type 2 diabetes and the pancreatic islet function is still okay, generally after the blood glucose is well controlled, the insulin is gradually reduced and oral hypoglycemic drugs are added for treatment, and many patients can get their blood glucose under control by taking oral hypoglycemic drugs after they are discharged from the hospital.