本文报告一例69岁妇女,经鉴定为热带鼠螨[Ornithonyssus bacoti(Hirst)]叮咬所引起的皮炎患者,表现为散在性丘疹,直径1～2毫米,围绕有2毫米红晕。皮疹分布于胸、肩及臂部,以与胸罩棚接触处的皮肤,皮疹表现为最多。具有剧烈的瘙痒。经一般抗痒处理,不能制止新疹发生。 This article reports a 69-year-old woman who was identified as a dermatitis caused by a bite of the Ornithonyssus bacoti (Hirst) bite, presenting as a scattered pimple with 1 to 2 mm in diameter and 2 mm flush around it. Rash distribution in the chest, shoulders and arm to contact with the brassiere shed at the skin, rash manifested as the most. Has a severe itching. After the general anti-itch treatment, can not stop the occurrence of new rashes.