Insulin as an important drug for lowering glucose has an important role in controlling blood sugar. However, the general public often has many prejudices about the application of insulin, which affects the treatment of diabetes. Here, let’s briefly discuss: I. Can insulin be addictive? Absolutely not. Addiction in the narrow sense refers exclusively to the compulsive need for and abnormal dependence on drugs. People use addiction to describe their concern about insulin because they are afraid that they will not be able to get off after insulin injection, and they are afraid that the injection will cause more damage to their body. Insulin is a physiological hormone that diabetics need because of a deficiency in the body. Proper insulin supplementation will result in good control of blood sugar, and not only will it not be harmful to the body, but it will also provide many benefits in terms of reducing the occurrence of complications due to the achievement of blood sugar standards. In essence, insulin and drugs are drugs with completely different meanings. We can compare insulin to the meal we eat every day, the reason why we need to eat every day is because the body needs it for development and activities, it is a ‘need’ in the sense of physiological needs completely, it is a healthy ‘dependence’ and cannot be defined by addiction. Second, having insulin means that my diabetes has reached a very serious stage. This is not true. The condition of diabetes needs to be judged by a combination of factors such as the length of medical history, good or bad blood sugar control, the number and degree of complications, the function of the pancreas, the combined diseases and the function of the organs of the whole body. The decision to take insulin or not to take insulin is mainly based on the recent blood sugar control and the presence of acute complications. For example, a 65-year-old patient with a primary diagnosis of diabetes has always been healthy and has a sweet tooth. During a recent physical examination, he was found to have a fasting blood glucose of 15 mmol/l without any discomfort such as dry mouth and polyuria, and a further check of glycated hemoglobin of 9%, with normal liver and kidney functions. The doctor suggested him to inject insulin for 1-3 months first. Soon, with diet control and moderate exercise, his blood sugar dropped to the ideal level, and after more than 1 month, he stopped using insulin and switched to oral medication. This case, that is, a patient with first diagnosis of diabetes mellitus, has not yet developed obvious complications after systematic examination, and his pancreatic islet function is still acceptable, and he is still in the early stage of diabetes mellitus. The reason why insulin was injected for him was to control blood glucose quickly and effectively, to relieve high glucose toxicity and to give some rest to the damaged islet cells. When the blood sugar is smoothly controlled, it can still be switched back to oral medication treatment, which further shows that insulin is not addictive. Third, the insulin will inhibit my own islet function, or take medicine to better exercise the islet function. This view can delay the treatment of diabetes. First of all, in the case of high blood sugar levels, the function of the islets is inhibited. Insulin injections can effectively lower sugar as if removing a mountain from the islets, and adequate rest will allow the islets to work better in the future. In addition, insulin injection does not exclude simultaneous oral medication. The combination of glucose-lowering drugs can improve the development of diabetes from multiple targets. For example, insulin injections can be accompanied by metformin, byprodione and other drugs. Diabetes is a pathological process of continuous decline of pancreatic islet function, which cannot be exercised by taking medications, and only good glycemic control may delay the development of diabetes to some extent. To sum up, insulin is a sincere friend for diabetic patients. When your blood sugar is very high and poorly controlled, you should never have colored glasses and prejudice against him. Always listen to your doctor’s advice and accept insulin’s selfless help.