Insulin. Blood sugar's 21.

Insulin, blood sugar or twenty-one, this is more serious, indicating poor blood sugar control, whether fasting blood sugar, or blood sugar 2 hours after meals are not allowed. Show the reasons for this situation, one is the improper use of insulin dosage, such as small doses, can not control blood sugar, there is insulin sensitivity decline, insulin resistance. The second one is poor diet control. Although insulin treatment is applied, diet is not strictly controlled, resulting in poor blood sugar control. It is recommended to check fasting blood glucose, 2 hours after meals, blood glucose and C peptide, as well as insulin levels, to clarify the reasons and adjust the treatment plan in time.