A detailed blood glucose monitoring record and glycated hemoglobin is like a combination of points and surfaces, which can provide an understanding of the overall blood glucose situation and lay the foundation for treatment planning. Just like “a clever woman cannot cook without rice”, without the data of blood glucose monitoring, it is difficult for doctors to evaluate the treatment plan. Some patients monitor but make confusing records or store the data in the glucose meter, and when they go to the hospital, they can’t tell which is which. Here is a template for patients’ reference: Fasting 2 hours after breakfast 2 hours before lunch 2 hours after lunch 2 hours before dinner 2 hours before dinner 2 hours after dinner 2 hours before bedtime 2 a.m. Monitoring records should be as comprehensive as possible and can be divided into several days to monitor the blood glucose at all time points. If the blood glucose value at a certain point is significantly different, it is recommended to repeat the blood glucose value at that point on another day. It is particularly recommended that patients who take more than two injections of insulin daily should try to do comprehensive monitoring according to the above table. Patients who take oral medication can monitor blood glucose at each point in a spot check manner. It is recommended that patients make a record book according to the above table and bring it to the doctor for reference at each visit. In addition, it is also meaningful to do glycosylated hemoglobin test regularly (about 3 months) for overall assessment, and venous blood can be drawn at any time for examination. Monitoring blood glucose is a prerequisite for safe and effective sugar reduction, so I hope patients can do a good job of this basic skill.