With the 10-year development and progress of science and technology, significant advances have been made in the field of type 1 diabetes from both domestic and international countries. The emergence of new technologies such as blood glucose monitoring, the evidence of clinical research has been accumulated and enriched. Therefore, the Chinese Diabetes Society, the Chinese Endocrinologist Association, the Chinese Society of Endocrinology, and the Chinese Pediatric Society, have jointly organized experts to update the 2012 edition of guideline for the diagnosis and treatment of type 1 diabetes mellitus in China, and to apply as much high-grade Chinese evidence as possible to develop the guideline for the diagnosis and treatment of type 1 diabetes mellitus in China (2021 edition). The new version guideline includes 20 chapters covering the epidemiology, diagnosis and classification, glucose monitoring, education and management, insulin therapy, medical nutrition therapy, exercise therapy, pancreas and islet transplantation, prevention and treatment of hypoglycemia, acute and chronic complications, clinical management in special stages, psychosocial issues and countermeasures of type 1 diabetes, as well as prediction and prevention. The promulgation of this guideline will help further standardize practical management for type 1 diabetes, and improve patients′ quality of life and clinical outcomes.

Diabetes mellitus, type 1; Guidelines; Diagnosis; Treatment