特发性血小板减少性紫癜 (ITP)是由于抗血小板自身抗体引起的血小板减少 ,并导致出血倾向的一种自身免疫性疾病。虽然已知某些病例是因某种病毒感染所致 ,但具体发病原因仍存在许多不明之处。ITP可分为急性型和慢性型 ,慢性型ITP可采用糖皮质激素、硫唑嘌呤等免疫抑制剂疗法或 Idiopathic thrombocytopenic purpura (ITP) is an autoimmune disease that results from thrombocytopenia caused by anti-platelet autoantibodies and leads to bleeding propensity. Although some cases are known to be due to some viral infection, there are many uncertainties about the exact cause of the infection. ITP can be divided into acute and chronic type, chronic type ITP can be glucocorticoid, azathioprine and other immunosuppressive therapy or