To determine if you have diabetes, you need to combine fasting blood sugar, two-hour glucose after glucose tolerance test, glycated hemoglobin, and diabetes-related symptoms.
High blood sugar depends on the specific value, if necessary, need to go to the hospital to improve the glucose tolerance test. If you have the typical “three more and one less” symptoms of diabetes, you can be diagnosed with diabetes if you have a fasting blood glucose of 7 ≥ mmol/l, or a two-hour postprandial blood glucose of ≥ 11.1 mmol/l, or a random blood glucose of ≥ 11.1 mmol/l, or a glycated hemoglobin of ≥ 6.5%.
In the absence of diabetes symptoms, two plasma glucose events meeting these criteria are required to confirm the diagnosis.
It is recommended to go to the hospital and ask the doctor to make a judgment if there are clinical signs related to diabetes mellitus or abnormal blood glucose values.