UGT1A1 and Hyperbilirubinemia: In this study, we investigated the correlation between UGT1A1 gene polymorphisms and the development of unconjugated hyperbilirubinemia in GS and post-hepatitis hyperbilirubinemia, and provide a new strategy for the possible aetiology, pathogenesis and therapy for “Gilbert’s like” syndrome in persistent or intermittent mild unconjugated hyperbilirubinemia in post-chronic liver disease.