目的调查2016年北京市某小区一居民出现皮炎的病因。方法通过标本鉴定、现场勘查和文献检索,确定病因并对患者提出建议。结果患者身体出现红色丘疹、瘙痒症状,在其床上有红色小虫活动,经鉴定为鸡皮刺螨;患者使用拟除虫菊酯类杀虫气雾剂喷洒后螨虫消失,经现场调查,未见鼠类活动痕迹及宠物出现;其屋内窗台上经常有麻雀、鸽子活动,国内共报告鸡皮刺螨侵袭人致皮炎6起,均与鸡、麻雀等鸟类有关。结论根据现场勘查结果,推测事件可能为鸟类携带鸡皮刺螨而引起。 Objective To investigate the etiology of dermatitis in residents of a community in Beijing in 2016. Methods Through the identification of specimens, site investigation and literature retrieval, to determine the cause and make recommendations to patients. Results The patient had red papules and pruritus symptoms, red bug activity on the bed and was identified as acanthopanax senticosus. After the patients were treated with pyrethroid insecticide aerosol, the mites disappeared. After the field investigation, no rodents Activities traces and pets appear; the house windowsill often sparrows, pigeons activities, a total of domestic reports of pigeon mites invasion caused by dermatitis 6, all with chickens, sparrows and other birds. Conclusion Based on the results of the field survey, it is speculated that the incident might be caused by birds carrying acanthopurgera.