For breast cancer liver metastases (BCLM), it is still uncertain whether liver resection or ablation is beneficial. The study's objectives were to evaluate surgical vs systemic treatment regimens and determine survival following isolated BCLM in national cohorts. To find individuals with BCLM who had not been identified with extrahepatic spread, researchers looked at the Swedish registration for cancer of the liver and bile ducts (SweLiv) and the National register for breast cancer (NBCR). Medical record reviews were used to evaluate and complete data from the registers. To examine survival, a Kaplan-Meier plot and log rank test were utilised. Cox regression analysis was used to analyse prognostic and predictive features.