There is no misdiagnosis of diabetes because there is a universal diagnostic standard for diabetes worldwide. Only when a patient’s blood glucose measurement meets the diagnostic criteria for diabetes can he or she be diagnosed with diabetes, and the criteria are relatively strict. Of course, among the diagnosed diabetic patients, some of them do not have particularly high blood glucose level, and after proper diet control and exercise, their blood glucose can be reduced to the normal range. This situation can also not be called a misdiagnosis of diabetes, only that diabetes is relatively light.