The average length of hospitalization for diabetes mellitus is 7 days. During the hospitalization, the patient is given a complete blood glucose monitoring, as well as an assessment of liver and kidney function, blood lipids, and blood pressure, and a screening for chronic complications of diabetes mellitus, such as fundus and peripheral neuropathy, as well as attention to macrovascular complications, such as the presence of coronary heart disease and atherosclerosis of the neck vessels. The average hospital stay for patients with simple diabetes is about 7 days. Depending on the patient’s condition, the hospital stay may be longer, for example, if the patient has diabetic nephropathy, diabetic retinopathy, or coronary artery disease, the treatment time is often longer, and comprehensive control of the indicators is needed to significantly reduce the incidence of complications.