As the epidermal coating continually replaces itself, cells are pushed outward anywhere they lastly expire along by flake off. in mainly people, these flakes of skin are too minute to be visible.

However, convinced conditions grounds cubicle turnover to be unusually rapid, specially in the scalp. for citizens by dandruff, skin cells might adult along by be shed in 2 - 7 days, for the grounds that opposed to in the area of month in citizens lacking dandruff. the effect is that lifeless skin cells are shed in large, oily clumps, which appear for the grounds that pallid or grayish patches on the scalp along by clothes.

Dandruff has been shown to be the effect of three required factors:

1. Skin lubricate commonly referred to for the grounds that sebum or sebaceous secretions
2. The metabolic by-products of skin micro-organisms (most specifically Malassezia yeasts)
3. Individual susceptibility

Common older textbook cites the fungus Malassezia furfur (previously known for the grounds that Pityrosporum ovale) for the grounds that the grounds of dandruff. as this fungus is originate naturally on the skin outside of jointly healthy citizens along by those by dandruff, it has of late been shown that scalp exact fungus, Malassezia globosa, is the liable agent. this fungus metabolizes triglycerides in attendance in sebum by the appearance of lipase, resulting in lipid byproduct oleic acidic (OA). Penetration by OA of the pinnacle coating of the epidermis, the stratum corneum, results in inflammatory retort in susceptible persons which disturbs homeostasis along by results in erratic cleavage of stratum corneum cells.

Rarely, dandruff can be manifestation of allergic feedback to chemicals in hair gels/sprays, hair oils, or at times at rest dandruff medications alike to ketoconazole.

There is no convincing confirmation that food (such for the grounds that sugar or yeast), excessive perspiration, or climate have each position in the pathogenesis of dandruff

Causes of Dandruff