血液病很容易併发感染,代表的病例有白血病,恶性淋巴瘤、多发性骨髓瘤等造血系统恶性疾病,再生不良性贫血和颗粒细胞缺乏症,这些疾病,如果本来有嗜中性粒细胞减少,体液性或细胞性免疫异常,加上强力的抗肿瘤化学疗法和付肾皮质激素的应用,就更减弱了宿主抵抗感染的能力,从而容易併发感染,而且病情危重,成为影响原发性疾病予后的重要因素。 Hematological diseases are easily complicated by infection, and the cases represented are malignant diseases of the hematopoietic system such as leukemia, malignant lymphoma and multiple myeloma, aplastic anemia and agranulocytosis. If these diseases are caused by neutropenia , Humoral or cellular immune abnormalities, combined with potent antitumor chemotherapy and corticosteroid treatment, diminish the ability of the host to resist infection, making it susceptible to concurrent infection and critically ill and becoming a disease of primary An important factor after the disease is given.