The presence of glucose (++) in the urine often indicates that the patient may have diabetes, because normal people do not have glucose in their urine, which means that glucose is negative. When the blood glucose in the blood exceeds 10 mmol/L or more, urine glucose will appear (++), glucose in the urine (++++) often indicates that the blood glucose in the blood has far exceeded 10 mmol/L or more, which is basically diabetes, but diabetes cannot be diagnosed based on urine glucose (++++), it is often necessary to further draw venous blood to determine fasting blood glucose and 2-hour postprandial blood glucose to clarify whether the combination of It is often necessary to take further venous blood to measure fasting glucose and 2-hour postprandial glucose to determine whether diabetes is combined. There is a special case where the urine glucose is plus but the patient’s venous blood glucose is not high due to the kidney disease itself, so it is necessary to combine the results of the venous blood glucose to make a diagnosis of diabetes.