Urine sugar + +, that is, urine sugar positive, first need to rule out whether to suffer from diabetes, the diagnostic criteria for diabetes is mainly based on blood glucose, if the fasting blood glucose is greater than 7mmol / L, 2 hours after taking sugar blood glucose is greater than 11.1mmol / L, or random blood glucose is greater than 11.1mmol / L, can be diagnosed as diabetes. However, elevated urine glucose or positive urine glucose is not always seen in patients with diabetes, and patients with diabetes can also have negative urine glucose. Therefore, if urine sugar is positive, first rule out whether it is diabetic or non-diabetic. Non-diabetic urine sugar positive, can also be seen in physiological transient hyperglycemia, transient hyperglycemia may also be abnormal renal glucose threshold. It is recommended to go to the hospital in time to improve the relevant examination, to exclude whether it is renal disease, or diabetes caused by positive urine sugar, it is recommended that early treatment. We need to rule out whether the urine specimen is contaminated, it is also recommended to wash the perineum and then review the urine routine. If the urine sugar is still positive, it is recommended to go to the hospital to complete the relevant examinations to further confirm the diagnosis.