复发是小儿原发性肾病综合征（ＮＳ）的主要临床问题之一。为了控制和减少复发，我们分析了４２例ＮＳ患儿复发的原因，并采取相应预防措施与对照组比较，现将结果报告如下。１资料与方法１·１观察对象男２８例，女１４例，年龄１５～１２岁，全部病例均符合１９８１年... Relapse is one of the major clinical problems in children with primary nephrotic syndrome (NS). In order to control and reduce recurrence, we analyzed the causes of relapse in 42 cases of NS children, and take corresponding preventive measures compared with the control group, the results are reported as follows. 1 Materials and Methods 1.1 Observation Object Male 28 cases, female 14 cases, aged 1  5 ~ 12 years old, all cases are in line with 1981 ...