If high blood sugar diagnosed as diabetes, it is possible to fight, but need to be based on the specific conditions, such as diabetes onset of early pancreatic islet function is inhibited, insulin is needed to release glucose toxicity. Some of the type 2 diabetes mellitus at the onset of very high blood glucose, and even with diabetic ketoacidosis and other acute complications, need to fight insulin treatment, rapid and effective sugar reduction therapy. If diagnosed with type 1 diabetes, also need to inject insulin, and usually lifelong use of insulin. If it is type 2 diabetes patients if the disease is long, pancreatic beta cell failure, also need to use insulin. Patients with diabetes should follow their doctor’s instructions for glucose-lowering therapy.