慢性活动性肝炎(CAH)可由病毒(HB-V、Non-A、Non-B、EBV、风疹病毒…等)及药物等引起,慢性铜代谢障碍和中毒(Wi-Ison 氏病)、α—抗胰蛋白酶缺乏也可偶发CAH。在我国以肝炎病毒为主。它是一个全身性多系统疾病,肝脏是主要的病变部位。CAH 的发病机理现认为是肝炎病毒持续感染与机体对病毒抗原介导的体液和细胞免疫反应以及免疫调控缺陷,而其中 CIC 所引起的第Ⅲ型变态反应对肝脏以及肝外组织的损害,使有的学者将其列为免疫复合病。但 Chronic active hepatitis (CAH) can be caused by viruses (HB-V, Non-B, EBV, rubella virus, etc.) and drugs, chronic copper metabolism disorder and poisoning (Wi-Ison’s disease) Antitrypsin deficiency can also occasional CAH. In our country mainly hepatitis virus. It is a systemic, multisystem disease where the liver is the major lesion. The pathogenesis of CAH is now considered to be hepatitis C virus persistent infection and the body of the virus antigen-mediated humoral and cellular immune responses and immunodeficiency defects, and which caused by CIC type Ⅲ allergic liver and extrahepatic tissue damage, so that Some scholars put it as immune complex disease. but