What is CGMS? CGMS is a convenient and painless way to record patients’ blood glucose changes and form a continuous blood glucose map for 24 hours throughout the day, which can truly reflect the changes of patients’ blood glucose under the environmental conditions of daily life, especially to detect nighttime hypoglycemia and dawn phenomenon that cannot be captured by current clinical testing methods, and its effective working time is not less than 72 hours. Why do we need dynamic blood glucose monitoring This is the finger blood glucose monitoring result of a diabetic patient, judging from this, his blood glucose control is satisfactory, but is this really the case in reality? This is the real blood glucose fluctuation curve of the same patient, in fact, his blood glucose control is not ideal, low blood glucose before meal and good blood glucose after meal are not controlled How does the dynamic blood glucose monitoring system work? The dynamic blood glucose monitoring system automatically records blood glucose value every 5 minutes by pre-installing a blood glucose sensing chip in the patient’s body, and a total of 288 blood glucose values are recorded throughout the day, monitoring for 24 to 72 hours at a time. Hundreds of blood glucose information are collected automatically, and after the monitoring is finished, the doctor will download the blood glucose information from the blood glucose recorder to the computer. Through data processing, a blood glucose change curve is depicted every 24 hours. The doctor can be clearly informed of the patient’s blood glucose changes during the monitoring period and discover many problems that cannot be detected by conventional blood glucose monitoring, such as asymptomatic hyperglycemia and nighttime hypoglycemia, providing important clues for rational treatment. Which diabetic patients need CGMS 1. Those who have poor blood glucose control and need to formulate, evaluate and adjust the treatment plan according to the blood glucose profile. 2.People who need to exclude occult hypoglycemia or hyperglycemia. 3.People who are suspected of having “dawn phenomenon” (elevated blood glucose in the early morning). 4.People suspected of having Somogyi phenomenon (hypoglycemia at night and reactive elevation of blood sugar in the early morning). 5.Patients with new-onset diabetes. 6.Patients with gestational diabetes.