外阴阴道炎是常见的婴幼儿疾病。婴幼儿卵巢功能不健全、阴道粘膜菲薄,自然防御功能尚未建立,阴道邻近肛门从而易受各种病原体的感染发生炎症。最常见的病原体为大肠杆菌,其次为葡萄球菌、链球菌、淋球菌、变形杆菌、滴虫、念珠菌及蛲虫等。其传播方式为携带病原体的母亲、幼儿 Vulvar vaginitis is a common infantile disease. Infant’s ovarian function is not perfect, the vaginal mucosa meager, natural defense function has not been established, the vagina near the anus and thus susceptible to various pathogens infection inflammation. The most common pathogen is Escherichia coli, followed by Staphylococcus aureus, Streptococcus, Neisseria gonorrhoeae, Proteus, Trichomonas, Candida and pinworm and so on. Its mode of transmission is carried by mothers, young children