肝炎后再生障碍性贫血(肝炎后再障,HAAA)是一种发生在急性或慢性肝炎后期,以外周血全血细胞减少,骨髓三系细胞增生低下,临床以贫血、出血及感染为特征的重症疾病,治疗方法有限,死亡率高达84.1%。25岁以下患者占肝炎后再障总数的80%,与肝炎的好发年龄有关。欧美地区肝炎后再障占 Posthepatitis Aplastic anemia (HAAA) is a severe condition characterized by anemia, hemorrhage and infection in the late stage of acute or chronic hepatitis with peripheral pancytopenia, low bone marrow myeloid cell hyperplasia Disease, treatment is limited, the mortality rate as high as 84.1%. Patients under the age of 25 accounted for 80% of the total number of patients with post-hepatitis A, and the age of onset of hepatitis related. After the hepatitis in Europe and America then barrier