摘要头皮屑以头皮脱屑伴瘙痒为特征,病因复杂,主要涉及微生态和皮肤屏障两方面因素.头皮微生态是头皮微生物及其生长环境构成的复杂生态系统,皮肤保护机体免受外界有害因素侵袭和防止组织水分丢失,具有重要的屏障作用.头皮微生物种群及数目的变化会改变皮肤屏障功能,而屏障功能的改变又会对微生物的定植产生影响,二者共同参与头皮屑的发病过程.

abstractsDandruff is characterized by a flaky scalp with pruritus.The aetiology of dandruff is multifactorial,and mainly associated with skin microbiome and skin barrier.Skin microbiome is a complex ecological system consisting of microorganisms and their habitats.As an important barrier,the skin can defend our body against extrinsic physical and chemical assaults,and prevent water loss.The changes in skin microbial communities and quantity can influence skin barrier function,which inversely affects microbial colonization,and both of them are involved in the development of dandruff.