Diabetes mellitus is a systemic, long-term, chronic, progressive disease, and with disease comes death. However, with advances in medicine, although most diabetes cannot be reversed, life expectancy can be the same as a normal person as long as a combination of monitoring, diet, exercise, and medication is taken to bring blood glucose up to standard. However, if you have diabetes and do not actively manage it, monitor it, and take dietary control, exercise, and medication. Increased blood glucose will bring acute complications, such as diabetic ketoacidosis, diabetic lactic acidosis, hyperglycemic hyperosmolar syndrome, and these acute complications have a high mortality rate. And chronic complications of diabetes, such as diabetic kidney damage uremia, glycosuria cardiovascular and cerebrovascular disease can make diabetic patients die. In short, diabetic patients should be actively managed, comprehensive treatment. Make blood pressure, blood lipids, blood viscosity, blood glucose, blood uric acid and other comprehensive standards, in order to work, live, learn and live a long life as normal people.