The article presents the voting results of the 1st St. Petersburg International Consensus on Diagnosis and Treatment of Breast Cancer «White Nights 2024», dedicated to the most urgent and controversial issues of diagnosis, surgical tactics, radiotherapy and systemic treatment of this category of patients. Chaired by Professor Vladimir Fedorovich Semiglazov, Corresponding Member of the Russian Academy of Sciences, 38 experts in the field of breast cancer (BC) diagnosis and treatment took part in the international consensus, voting during the live broadcast on 32 questions divided into blocks of early and metastatic BC. The next 2nd St. Petersburg International Consensus on the Diagnosis and Treatment of Breast Cancer “White Nights 2025” is scheduled to take place from 2 to 5 July 2025. © 2024 Autonomous non-profit scientific and medical organization. All rights reserved.