Results Allergic purpura patients with HPI had long course and relapsed requently, most of them were abdominal purpura type with severe inflammation and ulceration in the gastricendoscope.

• 结果感染HP患儿的过敏性紫癜有病程长、易反复发作且多有腹型紫癜表现的特点，胃镜下多表现为重度炎症及溃疡。