Psoriasis and dandruff can both trigger itching and flaky scalp skin. Psoriasis is a chronic autoimmune disorder that can cause thick patches of skin known as plaques on the scalp to become dry ...

Scalp Psoriasis vs. Dandruff: What’s the Difference? This article was reviewed by Knox Beasley, MD. If you’re experiencing a flaking, itching scalp, you may do a quick self-diagnosis of dandruff.

Psoriasis on lighter skin often appears on the arms, chest, legs, and shoulders, Hartman says. People with darker skin are more likely to find psoriasis lesions on the scalp, elbows, knees ...