4. How to Identify Scalp Psoriasis
Scalp psoriasis usually appears as well-defined reddish patches covered with silvery-white scales. These plaques may cross the hairline and can cause itching, burning, or temporary hair thinning from scratching. Unlike seborrheic dermatitis, which looks greasy and diffuse, psoriasis plaques are thicker and sharply outlined. Recognizing these differences can help determine if psoriasis might be the cause.
