This article explores the crucial role of biliary Carcinoembryonic Antigen (CEA) levels in detecting occult hepatic metastases in colorectal carcinoma (CRC) patients. While CRC remains a leading cause of cancer-related deaths, effective early detection of hepatic metastasis is still a significant challenge. Through a comprehensive study, this research investigates the potential of using biliary CEA as a more sensitive marker for liver metastases compared to traditional serum tests. Examining preoperative and postoperative CEA levels sheds light on how this biomarker could revolutionize early diagnosis and personalized treatment strategies, ultimately leading to better patient outcomes.