原发免疫性血小板减少症(primary immune thrombocytopenia,ITP)既往被称为特发性血小板减少性紫癜,是临床最为常见的出血性疾病,男女发病率相近,60岁以上老年人是该病的高发群体。2007年成立的ITP国际工作组,更新了ITP的命名、诊断标准、分期及治疗方案〔1〕。借着这一契机,中华医学会血液学分会止血与血栓学组于2009年 Primary immune thrombocytopenia (primary immune thrombocytopenia, ITP) was previously known as idiopathic thrombocytopenic purpura, is the most common clinical hemorrhagic disease, the incidence of similar men and women, the elderly over the age of 60 is the high incidence of the disease group. ITP International Working Group was established in 2007, updated the name of the ITP, diagnostic criteria, staging and treatment programs [1]. With this opportunity, hematology and hematology department of Chinese Medical Association Blood Branch in 2009