With the improvement of living standard in China, the incidence of diabetes is also increasing year by year, but in clinical diagnosis and treatment and health education for patients, it is found that many patients and even primary medical staff still have some misconceptions in diabetes treatment, which affect the correct treatment of diabetes. Myth 1: Use medicine when diabetes is detected Generally, newly diagnosed diabetic patients should first carry out diet control, adhere to appropriate physical activities, live a regular life, maintain emotional stability, lose weight in obese people, and observe for about 1~2 months. If the blood glucose control is satisfactory after these measures, you can adhere to non-pharmaceutical treatment. Only those whose blood glucose control is unsatisfactory after the above treatment will be treated with appropriate hypoglycemic drugs. Myth 2: Combination of similar drugs Oral hypoglycemic drugs include insulin-producing drugs, biguanides, α-glucosidase inhibitors, insulin sensitizers, etc. The mechanism of action of each class of drugs is different, but the mechanism of action of the same class of drugs is basically similar, so it is generally not advocated to combine the same class of drugs. The combination of drugs of the same class can sometimes lead to severe hypoglycemia. Myth 3: Inappropriate selection of drugs Such as the application of insulin secretagogue in obese patients, the application of sulfonylurea oral hypoglycemic drugs in pediatric patients, the application of biguanides in lean patients or those with abnormal heart, lung, liver and kidney functions, the use of oral hypoglycemic drugs in patients with acute complications such as ketoacidosis or serious chronic complications such as diabetic nephropathy, are not appropriate choices and should be avoided as much as possible. Myth 4: Taking medication by feeling Some diabetic patients are used to judging the good or bad blood sugar control according to their self-perceived symptoms. Many type 2 diabetic patients have less obvious symptoms and do not feel much difference between taking medication and not taking medication, so they think it is not important to use medication or not. In fact, it is not accurate to estimate the condition based on symptoms alone. In clinical practice, only a small number of patients with mild type 2 diabetes have good control of their blood glucose through diet and exercise alone, and the vast majority of patients with type 2 diabetes require medication at the time of diagnosis. Myth 5: Only take medication, no review Blood glucose test can understand the condition control and clinical treatment effect on the one hand, and can also be used as an important basis for selecting medication and adjusting medication dosage. With the prolongation of the disease, the effect of many sulfonylurea hypoglycemic drugs gradually decreases, which is called “secondary failure of hypoglycemic drugs” in medicine. Some patients do not pay attention to regular review, they feel psychologically secure because they have not stopped treatment, but if secondary failure of drugs occurs, it is actually the same as no treatment. Some patients who have been taking their medications have ended up with complications because of this.