过敏性紫癜是小儿科常见的一种出血性疾病．其特征为血液溢于皮肤粘膜之下，出现瘀点、瘀斑、压之不褪色．临床上常伴鼻衄、齿衄，甚则呕血、便血、尿血，本病多见于学龄儿童及青少年。1一般资料本组观察50例患者均为门诊病人，男30例，女20例；5～10岁30例，10～15岁20例；疗 Henoch-Schonlein Purpura is a common hemorrhagic disease in pediatrics. It is characterized by blood under the skin and mucous membranes, petechiae, ecchymosis, pressure of the fade. Clinically often accompanied by epistaxis, teeth 衄, and even hematemesis, blood in the stool, hematuria, the disease more common in school-age children and adolescents. 1 General Information The group observed 50 patients were outpatients, 30 males and 20 females; 5 to 10 years old in 30 cases, 10 to 15 years old in 20 cases;