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Dandruff with shed hair can be symptomatic of dry skin (shed skin scales and hairs on a dark wooden tabletop) The cause is unclear but believed to involve a number of genetic and environmental factors. [7] As the skin layers continually replace themselves, cells are pushed outward where they die and flake off. For most individuals, these flakes ...
However, as dandruff may refer to any dryness or scaling of the scalp, not all dandruff is seborrhoeic dermatitis. [6] Seborrhoeic dermatitis is sometimes inaccurately referred to as seborrhoea. [4] The cause is unclear but believed to involve a number of genetic and environmental factors.
Causes “Dandruff is caused by an exaggerated inflammatory response to a common yeast (Malassezia) that grows on most people’s skin,” says Dr. Opene. This response can be exacerbated by ...
These investigations show that the M. globosa is the species that causes most skin disease in humans, and that it is the most common cause of dandruff and seborrhoeic dermatitis (though M. restricta is also involved). [6] There can be as many as ten million M. globosa organisms on a human head. [4]
Dandruff is a specific condition; dry scalp is a symptom with many possible causes. A top derm explains how to tell which one you have, and how to treat them.
Scalp issues can be unsightly and uncomfortable. If you notice yourself dealing with scalp pain, redness, flaking and itching, you may be dealing with scalp conditions like dandruff or dry scalp.
In newborns, it causes a thick, yellow, crusty scalp rash called cradle cap, which seems related to lack of biotin and is often curable. (ICD-10 L21; L21.0) There is a connection between seborrheic dermatitis and Malassezia fungus, and antifungals such as anti-dandruff shampoo can be helpful in treating it. [44]
These investigations show that the Malassezia species causing most skin disease in humans, including the most common cause of dandruff and seborrhoeic dermatitis, is M. globosa (though M. restricta is also involved). [1] The skin rash of tinea versicolor (pityriasis versicolor) is also due to infection by this fungus.