When fasting blood glucose reaches 7.0 millimoles per liter or higher, and two-hour post-meal blood glucose is 11.1 millimoles per liter or higher, diabetes can be diagnosed. Diabetes is a very common disease in the endocrinology department. If fasting blood glucose is higher than 6.1 millimoles per liter but lower than 7.0 millimoles per liter, it is called impaired fasting glucose regulation. If two-hour post-meal blood glucose is higher than 7.8 millimoles per liter but lower than 11.1 millimoles per liter, it is called impaired glucose tolerance. Both impaired fasting glucose regulation and impaired glucose tolerance are pre-diabetes conditions. One should pay attention to: - Controlling diet - Increasing exercise - Eating more fresh vegetables and fruits - Reducing high-glycemic-index foods - Trying to minimize the chance of developing diabetes Once diabetes develops, if blood glucose still fails to reach the standard after controlling diet and appropriate exercise, drug treatment can be considered. Commonly used drugs include metformin, acarbose, etc.