
4. How to Identify Scalp Psoriasis
Scalp psoriasis typically appears as well-defined reddish patches coated with silvery-white scales. These plaques may cross the hairline and cause itching, burning, or temporary hair thinning due to scratching. Unlike seborrheic dermatitis, which looks greasy and diffuse, psoriasis plaques tend to be thicker and more sharply outlined. Recognizing these clues can help you determine whether psoriasis may be the cause.