This document describes the case of a 4-year-old male child presenting with itching, jaundice, and diarrhea for 3 months. He had a family history of similar cases resulting in death from liver disease. Liver tests showed elevated alkaline phosphatase. A liver biopsy showed mild degeneration and normal bile ducts. Immunostaining was positive for BSEP and MRP3. Based on the clinical features and test results, the child was diagnosed with Progressive Familial Intrahepatic Cholestasis type 1.