The main causes of an itchy scalp
1 – Dandruff and seborrheic dermatitis: the most common causes.
Dandruff, those unsightly small white flakes, is often caused by excess sebum or harsh products. It causes annoying itching, and the more you scratch, the more irritated your scalp becomes.
Seborrheic dermatitis, on the other hand, goes further: it’s a chronic inflammation that causes red patches with thick, yellowish scales. In addition to the scalp, it can also affect the eyebrows, the back of the ears, or even the nostrils.
