Dandruff is characterised by flakes—from dry, small flecks to huge, oily scales—that shed out of your scalp. It is a widespread situation and could be persistent, seasonal, or simply is available in ebbs-and-flows.
“Dandruff causes an itchy, flaky scalp. Also referred to as seborrheic dermatitis, a type of eczema, it’s attributable to a yeast, Malassezia furfur,” says board-certified dermatologist Raechele Cochran Gathers, M.D. “The malassezia yeast is widespread, and other people with seborrheic dermatitis are just a bit extra delicate to it.” It is not at all times nice to consider the plethora of organisms dwelling on our pores and skin (collectively known as the pores and skin microbiome), however basically what’s occurring within the case of dandruff is among the strains of yeast that naturally lives on us causes pores and skin to flake off and trigger irritation. And whereas it isn’t confirmed, there does appear to be a genetic hyperlink to this too, that means many are merely naturally predisposed to get it.
And whereas it is most well-known for showing on the top, it might probably present up a variety of locations: “Seborrheic dermatitis also can have an effect on different areas moreover the scalp, together with the ears, eyebrows, middle of the face, eyelids, higher chest, higher again, armpits, and groin space,” says board-certified dermatologist Hadley King, M.D.