Urine sugar is generally expressed as negative, (+), (++), (++++), (++++), (++++) is the value that represents the highest urine sugar, and then high urine sugar does not exist (+++++), (++++++). Therefore, urine sugar (++++) means that the blood sugar is definitely not well controlled. It is recommended to go to the hospital to measure blood sugar and glycosylated hemoglobin to accurately assess the blood sugar situation and choose the correct hypoglycemic drugs or a comprehensive treatment plan of diet and exercise according to the blood sugar situation. Diabetes is still characterized by an increase in blood glucose, and urine glucose is only a rough reflection of blood glucose, but not a complete reflection of blood glucose. The urine sugar also has a certain relationship with the renal sugar threshold, so high urine sugar can only roughly estimate that blood sugar must be very high, but the specific amount is not conclusive. In addition, patients using the new hypoglycemic drug SGLT-2 inhibitor can also appear urine sugar (++++), which is the mechanism of action of the drug itself, no need to worry.