Fasting blood sugar does not fall what reason is

The reasons why fasting blood glucose cannot be lowered in diabetes treatment include: 1. Dawn phenomenon, which is difficult to control blood glucose due to increased secretion of glucose-raising hormones from dawn to morning, and fasting blood glucose is higher. 2. Somogyi phenomenon, which causes rebound blood glucose elevation due to hypoglycemia at night. 3. Poor sleep at night and bad mood cause blood glucose elevation. 4. Hypoglycemic drugs are not effective, and persistent hyperglycemia needs to be adjusted.