Diabetes mellitus, including type 1 diabetes mellitus, type 2 diabetes mellitus, etc., generally cannot be restored to normal, and through treatment can only control blood glucose in the ideal range, slow down the progress of complications, etc. 1. Type 1 diabetes: It is caused by autoimmune deficiency, and the cell damage is irreversible and cannot return to normal. However, timely detection and timely treatment with insulin can control blood glucose within the ideal range. 2. Type 2 diabetes: Early intervention treatment, such as diet control and exercise, can restore pancreatic islet function to a certain extent, but not fully recovered Once the blood glucose rises uncontrollably, it is necessary to control blood glucose by taking hypoglycemic drugs and injecting insulin. For most diabetics, diabetes is not restorable to normal, so once you find that your blood sugar rises uncontrollably, you must treat it in time to avoid delaying your condition.