Hench-Schonlein Purpura, a common disorder in children and the most frequent etiological factor for the second nephritis in pediatrics department, is highly related with the immunologic derangement of the patients.

• 过敏性紫癜是儿童时期常见病和多发病,是儿童继发性肾炎的最常见的原因,与患儿自身免疫状态紊乱密切相关。