为了给白细胞减少症的防治工作提供依据,我们对核工业厂矿307例白细胞减少的患者进行了病因调查分析。结果可见,药物因素占首位(36.8％),其次为其他疾病继发(28.7％),职业因素占第三位(21.5％)原因不明占第四位(13.0％)。在药物因素中,抗菌素占42.1％,解热镇痛药占15.8％,抗痨药占10.5％,镇静药占7.0％,抗甲状腺药占3.5％,二种以上药占20.3％,在其他疾病继发因 In order to provide the basis for the prevention and treatment of leukopenia, we conducted an etiological investigation on 307 leukopenia patients in the NPP. The results showed that drug factors accounted for the first place (36.8%), followed by other secondary diseases (28.7%), occupational factors in third place (21.5%) for unknown reasons accounted for fourth place (13.0%). Antibiotics accounted for 42.1%, antipyretics and analgesics accounted for 15.8%, antituberculosis drugs accounted for 10.5%, sedatives accounted for 7.0%, anti-thyroid drugs accounted for 3.5% and two or more drugs accounted for 20.3%. In other diseases Secondary causes