What is the honeymoon phenomenon after insulin treatment for type 1 diabetes? Some patients with type 1 diabetes are in partial or complete remission for a period of time after insulin therapy, and the insulin dose is reduced or can be stopped completely, which is called the honeymoon phase of diabetes, but the remission is temporary, and its duration varies from weeks to months, and generally does not exceed one year. The mechanism by which the honeymoon phase occurs is not fully understood and is presumed to be related to the spontaneous recovery of the patient’s residual islet function. What is the dawn phenomenon? What is the Sumudje reaction? The dawn phenomenon is that the patient has good control of blood sugar at night and no hypoglycemia, but only appears hyperglycemia at dawn for a period of time, and the mechanism is due to the increased secretion of insulin antagonist hormones such as cortisol and growth hormone; the Sumujer reaction shows that the patient had hypoglycemia at night, but it was not detected during sleep, and then hypoglycemia occurred after The reactive hyperglycemia. Multiple nighttime (0, 2, 4, 6 and 8 o’clock) blood glucose measurements can help identify the cause of early morning hyperglycemia.