Breast cancer is the most common malignant tumor among Chinese women. Young breast cancer patients are not uncommon and have unique medical needs. With the progress of clinical research both domestically and internationally, and the release of international consensus and guidelines, the diagnosis and treatment of young breast cancer patients have gradually garnered widespread attention in the academic community. In 2022, to standardize and optimize the diagnosis and treatment of young breast cancer in China, the Expert Committee on Diagnosis and Treatment of Young Breast Cancer in China released the "Expert consensus on diagnosis and treatment of young breast cancer in China (2022 Edition)". Herein, the authors provide an interpretation of the key points within this consensus to better convey the information to readers.