报告４２例青少年复发性坏死溃疡（ｊｕｖｅｎｉｌｅｍｕｃｏｓａｎｅｃｒｏｔｉｃａｕｌｃｅｒｓｒｅｃｕｒｅｎｃｅ简称ＪＭＮＵ），男３７例，女５例。年龄５～１７岁，平均年龄１０岁。临床症状与成人腺周口疮不同，其特点为：固定部位复发，常固定于双颊脂垫下方及舌尖区；舌部溃疡呈深裂沟状及病理组织学发现有血管炎象。４２例采用中西医综合治疗取得较满意效果。 Report of 42 cases of juvenile recurrent necrotic juvenile (juvenilemucosanecroticaulcersrecurence referred to as JMNU), 37 males and 5 females. Age 5 to 17 years old, average age 10 years old. Clinical symptoms and adult periocular aphthous different, characterized by: recurrence of fixed parts, often fixed below the cheek fat pad and tongue area; tongue ulcer was deep fissure and histopathology found vasculitis. 42 cases with integrated traditional Chinese and Western medicine to obtain more satisfactory results.