What is hypoglycemia and abnormal fasting glucose? Hypoglycemia is defined as blood glucose higher than normal but not yet meeting the diagnostic criteria for diabetes. The criteria are: blood glucose between 7.8-11.1mmol/L 2 hours after taking sugar in a glucose tolerance test. Abnormal fasting glucose is defined as fasting glucose between 6.1-7.0 mmol/L. Decreased glucose tolerance and abnormal fasting glucose are early signs of glucose metabolism disorder, also known as pre-diabetes, which within 5-10 years, 1/3 can develop diabetes, l/3 can return to normal blood glucose, and the remaining l/3 maintain the same blood glucose. It is also often accompanied by obesity (especially abdominal obesity), hypertriglyceridemia, reduced HDL, elevated LDL, hyperuricemia, hyperfibrinogenemia, hypertension, and coronary artery disease. The incidence of microvascular and macrovascular complications is higher than normal in patients with hypoglycemia, even if they are asymptomatic, and should be taken seriously. How should hypoglycemia be treated? The first thing you should do in the period of hypoglycemia is to sound the alarm about your health condition, learn about diabetes, consult with a specialist and establish contact with him/her, go to the hospital for frequent check-ups, have your blood sugar checked once every six months to once a year, and consult a doctor as soon as you experience polyuria, thirst, excessive drinking and weight loss. It is not enough to have frequent check-ups, but to take preventive measures to delay the onset of diabetes. Preventive measures include lifestyle changes, diet control, exercise, and oral medication if necessary. It is important to establish good and healthy lifestyle habits, eat regularly, work and rest, quit smoking and alcohol, ask a specialist to help you develop a scientific recipe, ensure sufficient exercise time and take scientific exercise, and take drugs such as biguanides and glucosidase inhibitors under the guidance of a doctor if necessary, which can only be taken under the guidance of a specialist.