This multicontinental survey study highlights the high prevalence of PPA usage in breast cancer surgery among surgeons around the world, with cephalosporins being the preferred choice. Furthermore, academic surgeons and those specializing in breast cancer surgery were more likely to prescribe PPAs. These findings provide valuable insights into the current practices and trends in antibiotic usage in breast cancer surgery, emphasizing the need for further research and guidelines to optimize antibiotic stewardship in this surgical setting.