A common skin condition known as seborrheic dermatitis may appear as scaly areas on the skin or as dandruff on the scalp. These patches can be dry, greasy, or irritating, and their color varies according to skin tone. Areas of the body that produce a lot of oil, such as the scalp, sides of the nose, eyebrows, ears, chest, and even the eyelids.
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What causes dandruff?
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Malassezia furfur, a yeast that lives and grows on everyone's skin, typically triggers an inflammatory response that results in dandruff, or seborrheic dermatitis in general. According to Adigun, those who have this reaction typically have skin that "just doesn't like the yeast," has more yeast growing on it, or a mix of the two.
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Why am I getting so much dandruff all of a sudden?
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Numerous factors can cause flare-ups of seborrheic dermatitis. A prolonged interval between shampooing is a common cause of seborrheic dermatitis on the scalp. As a result, the yeast might proliferate and eventually reach a concentration that the skin can no longer handle.
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Why do I have dandruff if I wash my hair daily?
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Each has an individual limit for how frequently to wash their hair in order to avoid dandruff. "Seborrheic dermatitis can strike some people two weeks before it does. If someone misses even one or two days, they will develop severe seborrheic dermatitis on their scalp
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Main cause of dandruff is probably not what you think
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It can be quite irritating to look in the mirror and see those tiny white or gray skin flakes standing out against your black hair like a sore thumb. If you have periods of hair that are both free of dandruff and hair that isn't so free of it, this may feel particularly true to you.