Question

A disorder that refers to a chronic scalp condition with excessive flaking, which accumulates on the scalp or falls to the shoulders, is called dandruff or:

1) Seborrheic dermatitis
2) Psoriasis
3) Eczema
4) All of the above

Answer 1

Dandruff or seborrheic dermatitis is a scalp condition with excessive flaking. Psoriasis and eczema are different skin conditions that also cause flaking but are distinct from dandruff. Eczema usually occurs in areas other than the scalp.

Step-by-step explanation:

The disorder that refers to a chronic scalp condition with excessive flaking, which accumulates on the scalp or falls to the shoulders, is known as dandruff or seborrheic dermatitis. This condition involves an inflammatory reaction on the scalp that leads to the production of excessive skin cells, which flake off. While dandruff is a milder form of seborrheic dermatitis, the two are related and often used interchangeably to describe scalp flaking. Psoriasis is another skin condition that can affect the scalp, characterized by itchy or sore patches of thick, red skin with silvery scales, but it is a distinct condition from dandruff. Eczema, also known as atopic dermatitis, typically manifests as dry, itchy patches of skin that can flake, but it is usually found in areas other than the scalp.