[Expert consensus on the diagnosis and treatment of intrahepatic cholestasis (2021 edition)].

Intrahepatic cholestasis is a clinical syndrome due to the defect of bile acid synthesis, abnormal bile excretion, and mechanical or functional disturbance of intrahepatic bile flows caused by hepatic parenchymal cell and/or intrahepatic bile duct diseases. It commonly occurs as cholestatic liver diseases, intrahepatic cholestasis of pregnancy, and genetic/metabolic-related cholestatic diseases. In recent years, new information and progress in diagnosis and treatment of intrahepatic cholestatic diseases have been achieved. In order to provide updated clinical reference and guidance for clinicians, we organized experts to compile the Expert Consensus on the Diagnosis and Treatment of Intrahepatic Cholestasis (2021), on the basis of the 2015 edition.肝内胆汁淤积症是指由于肝实质细胞和/或肝内胆管疾病引起胆汁合成缺陷、排泌异常，以及胆管中胆汁流动的机械性或功能性障碍，继而使得胆汁成分入血所致的临床症候群，常见于胆汁淤积性肝病、妊娠期肝内胆汁淤积症以及遗传代谢相关胆汁淤积等。近年来肝内胆汁淤积症的诊治资料有了进一步积累，为将更新的诊疗依据提供给广大肝病医务工作者，特组织专家在2015年《肝内胆汁淤积症诊治专家共识》基础上进行共识更新，旨在为临床肝内胆汁淤积症诊治提供参考和指导。.