Type 2 diabetes is a type of diabetes caused by insulin resistance or insufficient insulin secretion. type 2 diabetes is characterized by: first, obesity is predominant, and obesity tends to cause insulin resistance, so type 2 diabetes patients have high insulin secretion levels in the early stages of the disease, which is related to severe insulin resistance. Second, type 2 diabetes generally does not need to rely on insulin at the beginning of treatment, because type 2 diabetes patients themselves can secrete insulin from their pancreatic islets. In addition, the onset of type 2 diabetes is not particularly obvious, and the onset of the disease is relatively insidious, many patients do not have particularly obvious clinical symptoms, but the blood sugar is already relatively high.