Dandruff is a common scalp condition that causes flaking and itching of the scalp. It can be caused by a variety of factors, including:
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Malassezia: A type of yeast that lives on the scalp and feeds on the natural oils produced by the hair follicles. An overgrowth of this yeast can cause dandruff.
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Dry skin: If your scalp is dry, it can cause flaking and itching. This can be caused by cold weather, indoor heating, and using harsh shampoos that strip the scalp of its natural oils.
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Seborrheic dermatitis: This is a more severe form of dandruff that causes redness, inflammation, and greasy-looking scales on the scalp. It is caused by an overgrowth of yeast, as well as genetics, stress, and certain medical conditions.
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Allergic reactions: Some people may develop dandruff as a result of an allergic reaction to hair care products, including shampoos, conditioners, or styling products.
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Poor diet: A diet lacking in certain nutrients, such as zinc, can contribute to dandruff.
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Medical conditions: Certain medical conditions such as psoriasis, eczema, or Parkinson's disease can cause dandruff.
Overall, dandruff can be caused by a variety of factors, and it is important to identify the underlying cause in order to treat it effectively. If you have persistent dandruff, it is recommended to consult with a dermatologist or a healthcare provider for an accurate diagnosis and treatment plan.