Diabetic patients with blood glucose 12mmol / L more serious or not, need to be based on the time of blood glucose measurement, as well as the measurement of whether the person at the same time with other complications, etc. to make a comprehensive judgment. General diabetic patients fasting blood glucose should be controlled below 7.0mmol/L, and 2 hours after meal blood glucose, young people should be controlled below 7.8-11.1mmol/L is more appropriate; old people and other underlying diseases, 2 hours after meal blood glucose control below 10.0mmol/L is more appropriate. 1, not serious: if the blood glucose value of 12mmol / L more than 2 hours after the meal, but not accompanied by cardiovascular disease, the blood glucose value of 12mmol / L, the blood glucose value of 12mmol / L, but not accompanied by cardiovascular disease, and so on. 12mmol/L, but not accompanied by cardiovascular disease, obesity and body discomfort symptoms, generally not serious. Usually it can be regulated by low glycemic diet or use of hypoglycemic drugs, such as acarbose, metformin, etc.; 2. Serious: If the blood glucose value of 12mmol/L is measured in fasting or random situation, the measurement belongs to the higher range, and may have reached the level of insulin use, which is generally more serious. If the blood glucose value of 12mmol/L is measured after a meal, and at the same time belongs to the accompanying atherosclerotic cardiovascular disease, such as coronary heart disease, acute coronary syndrome, etc., at this time, although the measured blood glucose value is not much more than the normal range, but also can be diagnosed as diabetes mellitus, and diabetes mellitus will exacerbate the risk of the complications mentioned above, and therefore is also more serious, and generally need to monitor the patient closely for the level of blood glucose. At the same time, under the guidance of the doctor, the appropriate treatment for cardiovascular disease, accompanied by coronary heart disease, can use coronary heart Danshen drip pill treatment.