Autoimmune hepatitis (AIH) is a chronic inflammatory liver disease which, if untreated, often leads to cirrhosis, liver failure and death. The last British Society of Gastroenterology (BSG) guideline for the management of AIH was published in 2011. Since then, our understanding of AIH has advanced in many areas. This update to the previous guideline was commissioned by the BSG and developed by a multidisciplinary group. The aim of this guideline is to review and summarise the current evidence, in order to inform and guide diagnosis and management of patients with AIH and its variant syndromes. The main focus is on AIH in adults, but the guidelines should also be relevant to older children and adolescents.

自身免疫性肝炎（AIH）是一种慢性炎症性肝病，如不及时治疗，通常会导致肝硬化、肝衰竭和死亡。英国胃肠病学会（BSG）上一份关于自身免疫性肝炎治疗的指南于2011年发布。从那时起，我们对AIH的认识在很多方面都有了进步。本指南是受英国胃肠病学会（BSG）委托，由一个多学科小组制定的，是对之前指南的更新。本指南旨在回顾和总结现有证据，为AIH及其变异综合征患者的诊断和管理提供信息和指导。指南的重点是成人AIH，但也适用于年长儿童和青少年。