A routine urine test cannot detect diabetes, but it can indicate a possible risk of high blood sugar. Routine urine tests mainly include urine ketone body test, urine sugar test, urine protein test, urine pH test and so on. Among them, a positive urine glucose test suggests that there may be elevated blood glucose, which may be diabetic or due to short-term intake of large amounts of sugar. If the glucose level in the blood of diabetic patients is abnormal, the result of urine routine test is often positive, so urine routine auxiliary test can provide an important basis for the diagnosis of diabetes mellitus, but the application of this means is prone to misdiagnosis and omission of diagnosis, so it is necessary to combine with the glucose biochemical tests and other tests, as well as clinical manifestations, etc. to confirm the diagnosis of diabetes mellitus. Diabetic patients should be diagnosed and treated under the guidance of specialized doctors.