Type 2 diabetes will not turn into type 1 diabetes.The difference between type 1 diabetes and type 2 diabetes is mainly the following: a, the age of onset and clinical manifestations, type 1 diabetes more than adolescents onset of the disease, the typical three more than one less symptoms, prone to diabetic ketoacidosis.2 diabetes onset of the age of greater than 40 years of age, under special circumstances, can also occur diabetic ketoacidosis. Type 2 diabetes has both insulin resistance and insulin deficiency, which can be treated with oral hypoglycemic drugs or insulin. Type 1 diabetes can be positive for islet cell antibodies, insulin antibodies, and glutamic acid decarboxylase antibodies, while type 2 diabetes is negative for related antibodies. Antibody testing is the gold standard for distinguishing type 1 diabetes from type 2 diabetes, which is positive in the early stages or during the course of the disease and negative in type 2 diabetes. Although type 2 diabetes, especially longstanding, wasting type 2 diabetes, also has poor pancreatic function and requires insulin therapy, it still cannot be called type 1 diabetes.