过敏性紫癜(AP)是最常见的毛细血管变态反应性疾病,临床分为皮肤型、腹型、关节型、肾型及混合型。其中肾型与本病预后关系密切,且容易复发。过敏性紫癜合并肾脏损害亦简称紫癜性肾炎(APN),是儿童时期重要的肾小球疾病之一。在此着重进行小儿紫癜性肾炎的临床分析。 Henoch-Schonlein purpura (AP) is the most common capillary allergic disease and is clinically divided into skin type, abdominal type, joint type, renal type and mixed type. Among them, the kidney type is closely related to the prognosis of the disease, and it is easy to relapse. Henoch-Schonlein purpura with renal damage also referred to as purpura nephritis (APN), is one of the important childhood glomerular diseases. In this focus on the clinical analysis of children with purpura nephritis.