The first thing a patient should do to rule out a laboratory error with urine glucose(+) is to get up the next morning on an empty stomach and leave the middle morning urine to recheck the urine routine. If the repeat urine routine still suggests urine glucose (+), fasting glucose, glycated hemoglobin and two-hour postprandial glucose need to be refined. Because urine glucose (+) may often indicate diabetes, diabetes can be diagnosed if the fasting glucose checked is greater than 7.0 mmol/L, the two-hour post-meal glucose is greater than 11.1 mmol/L, and the glycosylated hemoglobin is greater than 6.5%. Patients who are diagnosed with diabetes and take oral hypoglycemic drugs or need insulin to control blood glucose should be decided according to the results of glycated hemoglobin, and liver function and kidney function should be improved, and oral hypoglycemic drugs should be taken only when liver function is normal and kidney function is normal.