Whether fasting blood glucose 7.3 mmol/L is considered high or well-controlled in diabetic patients depends on a comprehensive judgment of the patient’s condition, complications and medication. If the patient is a type 2 diabetic with a longer disease duration, has developed chronic complications of diabetes, especially the presence of diabetic atherosclerotic cardiovascular disease, and uses a glucose-lowering regimen with insulin containing sulfonylurea or glargine glucose-lowering drugs, that is, the patient’s glucose-lowering regimen has the risk of hypoglycemia, fasting blood glucose 7.3 mmol/L is considered well-controlled. If the patient has a relatively short disease duration, a relatively long life expectancy, and has not yet developed serious chronic complications of diabetes, the hypoglycemic risk of the glucose-lowering drugs used is very small, and the fasting blood glucose 7.3 mmol/L is on the high side, the glucose-lowering regimen can be adjusted to try to keep the fasting blood glucose below 7 mmol/L. If the patient is a type 1 diabetic with very poor islet function, because type 1 diabetics use a glucose-lowering regimen of four injections of insulin a day at basal plus meals, the risk of hypoglycemia is relatively high, and if the patient’s fasting blood glucose of 7.3mmol/L is also considered well controlled.