Why does my scalp itch so much?

Itchy scalp. The severity, frequency and duration of an itchy scalp depend on the underlying cause. Some causes of an itchy scalp, such as dandruff (seborrheic dermatitis), can be relatively minor. However, an itchy scalp can also be due to more serious conditions, such as infection, inflammation, parasite infestation, autoimmune disorders, and allergies.

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