婴幼儿内外生殖器未发育成熟,雌激素缺乏,阴道上皮薄,细胞内缺乏糖原,阴道酸度低,抗感染力弱,易受感染而发生阴道炎;多见于1～5岁的幼女。病原体常由患外阴或阴道炎的母亲、保育员等直接传播,或通过污染的衣裤、浴盆、毛巾等用具传播,也常由于阴部不洁,随地坐卧,粪便污染引起。有的病例是由阴道异物或蛲虫引起。 1 临床表现 婴幼儿阴道炎常并发外阴炎,主要症状是出现脓性分泌物,患儿诉外阴痛、痒不适,并经常用手抚摸及搔抓,乳婴儿则哭闹不安。检查可见:外阴红肿,沾有脓 Infantile genital mutilation is not mature, estrogen deficiency, thin vaginal epithelium, lack of glycogen in cells, vaginal acidity is low, anti-infective weak, susceptible to infection and vaginitis; more common in young girls aged 1 to 5 years. Pathogens are often transmitted directly by mothers, nurses, etc. who have genital or vaginitis, or by contaminated clothing, tubs, towels and other utensils, and often due to unclean pussy, lying on the ground and contaminated feces. Some cases are caused by vaginal foreign body or pinworm. 1 Clinical manifestations Infantile vaginitis is complicated by vulvitis, the main symptoms are purulent discharge, children complain of vulvodynia, itchy discomfort, and often hand touching and scratching, milk babies are crying uneasy. Check shows: vulvar swelling, stained with pus