For patients with high blood glucose for the first time, glucose-lowering treatment should focus on improving lifestyle by controlling diet and increasing exercise, and also improving relevant examinations, such as rechecking fasting blood glucose, glucose tolerance test, 2-hour postprandial blood glucose and glycated hemoglobin, so as to clarify the diagnosis. If the patient is diagnosed with diabetes, he or she needs to be treated systematically, and at the same time improve the lifestyle, then choose the appropriate hypoglycemic drugs for treatment. If it is only a transient increase in blood glucose caused by improper diet of the patient, it is necessary to control the diet, increase physical activity and exercise to prevent the disease from progressing to diabetes. If the patient has suffered from diabetes in the past and the fasting blood sugar is 9.9 mmol/L, it means that the blood sugar is poorly controlled. Patients are advised to visit the endocrinology department and adjust the amount of hypoglycemic drugs or hypoglycemic drugs under the guidance of doctors, and patients should monitor their blood sugar well during the treatment period so that the treatment can be adjusted at any time according to the results of blood sugar monitoring.