There has been a perception about the use of insulin that after using it, dependence will develop, telling you that this is not scientific. The use of insulin is necessary for the treatment of diabetic patients at different times, complications, and insulin use. Here I will talk briefly about the need for insulin from different types of diabetic patients as an example! 1. First-onset diabetes. For patients with first-onset diabetes, the function of the pancreas is affected by certain factors, such as metabolic disorders, viral infections, overeating, and significant mood swings, which cause the function of the pancreas to be dormant or inactive for a short period of time. At this time, the use of insulin does not depend on our fasting blood sugar and our glycemia, but it is necessary to use insulin even if it is lower than the above-mentioned standards, in order to correct the metabolic disorders in our body, so that the islet cells in a dormant or inactive state can be rejuvenated after sufficient rest and reinforced for a longer honeymoon period, which refers to This honeymoon period means: for a short period of time, you can use a very small amount of insulin or a few simple oral medications, or even rely on diet and exercise alone to keep your blood sugar under good control. 2. Gestational diabetes. There are several reasons for using insulin in gestational diabetes. First of all, some other drugs during pregnancy will have an effect on the fetus, and only insulin has the least side effects on the fetus according to current research. In addition, if the blood glucose is high, we need to control our blood glucose to the ideal state in the shortest time, because the high blood glucose of the mother will directly transport energy to the fetus through the placenta, resulting in high blood glucose in the fetus, too much energy will lead to a huge baby, incomplete development, or even fetal death. Excessive blood sugar in the fetus will cause the fetus to secrete a lot of insulin by itself, because maternal blood sugar can pass through the placenta, while insulin is a large molecule that cannot pass through the placenta, and the child can only rely on itself. Vigorous insulin secretion does not stop after the delivery of the fetus, and stopping nutrient supply will lead to severe hypoglycemia after the delivery of the fetus. Therefore, it is sometimes said that there are too many children in neonatal units because the endocrinologists have not done their job properly. 3. Diabetic ketoacidosis and hyperosmolar coma. Diabetic acidosis and hyperosmolar coma are both acute cases of serious complications of diabetes mellitus, which need to be corrected in a short period of time, and too much time can lead to serious consequences. As for our oral medications, such as the bicuculline promoter acarbose, each of them has a limited range of lowering glucose, and when glycation is greater than 10, using all of these commonly used oral medications will not control blood glucose in the ideal state in the short term. Only insulin is to break down blood sugar, only insulin can control blood sugar in the shortest possible time, only insulin is our lifesaver at this time. 4.Type 1 diabetes. Type 1 diabetes, because it is the influence of certain factors that cause our insulin secretion is insufficient, because there is no other drugs can break down blood sugar, oral drugs are ineffective, and type 1 diabetes patients lack sufficient self-regulation function, no pancreatic buffer, often quite sensitive to foreign insulin, need insulin pump or three short and one long intensive treatment program. The above are the most common situations in which we must use insulin, and there are other conditions, such as diabetes severely combined with serious complications, which also require insulin, to name a few.