The presence of a 3+ urine glucose in a diabetic patient needs to be determined to be serious based on the specific cause of the condition. If it is a stress elevation is usually not serious, if it is poor blood sugar control, it is more serious, it is recommended to seek medical attention in time. Such as surgery, pregnancy, childbirth and other reasons, there can be a stress elevation, resulting in blood glucose is not well controlled, can appear urine sugar 3 + phenomenon. At this time, the patient’s kidney function is normal, so it is usually not serious. If the patient did not take medication on time, arbitrarily reduce the dose of drugs and other reasons for the rise in blood glucose appeared in the urine sugar 3 + phenomenon. Patients may develop complications such as diabetic ketoacidosis and hyperosmolar hyperglycemic state. These diseases may threaten the patient’s life and prompt medical attention is recommended. Diabetic patients are required to use hypoglycemic drugs as prescribed by the doctor and should not reduce or increase the dosage without authorization. If any abnormality occurs, it is recommended to go to the hospital in time and follow the doctor’s instructions to avoid delaying the condition.