If the blood sugar returns to normal, it should be considered as diabetes. If the diagnosis of type 1 or type 2 diabetes is confirmed, even if the blood sugar returns to normal, it is still diabetes; if the blood sugar is elevated due to infection or surgery, it is not considered as diabetes if the blood sugar returns to normal after the primary disease has been cured and it is recommended that you consult with your doctor. Once diagnosed with type 1 or type 2 diabetes, even after dietary control, appropriate exercise, hypoglycemic drug therapy to restore blood sugar to normal levels are still diabetes, once the medication is discontinued, blood sugar will still rise. However, if acute infection, trauma and other stress factors caused by elevated blood glucose, when the primary disease has been effectively treated and cured, the patient’s blood glucose level can be restored to the normal range, this kind of situation is generally not considered diabetes. Patients whose blood glucose levels return to normal and who are not sure if they have diabetes can go to the hospital and consult a medical professional.