Which condition can be associated with the presence of excessive dandruff?

Excessive dandruff is often a symptom associated with psoriasis of the scalp. Scalp psoriasis is a chronic skin condition that leads to the rapid turnover of skin cells, resulting in thick, silvery scales and red patches. This increased cell turnover can contribute to flaky skin and excessive dandruff.

In contrast, a healthy scalp condition typically does not involve noticeable flakes, while allergic reactions to hair products may lead to irritation or dermatitis rather than just dandruff. Normal hair shedding refers to the natural process of losing a certain amount of hair daily and does not encompass the flakes typically identified as dandruff. Overall, the link between excessive dandruff and scalp psoriasis emphasizes the pathological nature of the symptom rather than just an everyday occurrence.