已知卵圆形糠秕孢子菌(Pityrosporum ovale,Po)是花斑癣和糠秕孢子菌毛囊炎的病原体。虽然1904年Sabouraud在脂溢性皮炎中检出马拉色菌孢子,并怀疑此种酵母菌与脂溢性湿疹的发病有关。问题是:是否卵圆形糠秕孢子菌是脂溢性湿疹的病原体,尚有争议。临床观察脂溢性湿疹用抗真菌药治疗有相当好的效果,特别是咪唑类衍生物酮康唑疗 Pityrosporum ovale (Po) is known to be the causative agent of pityriasis versicolor and Pityrosporum folliculitis. Although in 1904 Sabouraud detected Malassezia spores in seborrheic dermatitis, it was suspected that this yeast was associated with the onset of seborrheic eczema. The question is: Is Pityrosporum ovale is the causative agent of seborrheic eczema, is still controversial. Clinical observation of seborrheic eczema with antifungal therapy has a very good effect, especially the imidazole derivatives ketoconazole treatment