常复发性肾病综合征（NS）是指经激素治疗后能完全缓解，但在一年内复发3次或半年内复发2次以上者。日本石木认为在激素治疗过程中经减量或小剂量维持阶段又出现3次以上反跳者［1］。另有学者认为，在激素减量过程中复发或激素标准复治期间连续2次复发或在停用激素2周内复发者 Often, recurrent nephrotic syndrome (NS) refers to complete remission after hormone therapy, but relapse 3 times a year or within 6 months of recurrence more than 2 times. Japanese stone wood that in the hormone therapy during the reduction or maintenance of small doses appear again more than 3 rebounds [1]. Other scholars believe that in the process of hormone reduction during relapse or hormone standard retreatment during 2 consecutive relapse or in the withdrawal of hormone within 2 weeks of recurrence