Types of Psoriasis

If anti-dandruff shampoos have made no difference after weeks of use, scalp psoriasis may be the reason. Around half of all people with psoriasis have scalp involvement — and it is one of the most commonly misdiagnosed locations. This guide breaks down exactly how to tell the two conditions apart and what treatment options are available for scalp psoriasis specifically.

Nail psoriasis is one of the most frequently misdiagnosed manifestations of psoriasis — often mistaken for a fungal infection for years. It affects up to 50% of people with skin psoriasis and up to 80% of those with psoriatic arthritis. This guide explains the signs, the diagnostic process, and what treatment options are available.

Inverse psoriasis affects the skin folds — areas where moisture and friction make psoriasis harder to manage and easier to misdiagnose. Unlike plaque psoriasis, it produces smooth, shiny, intensely red patches rather than scaly plaques. This guide covers what causes it, how to recognize it, and which treatments work best for these sensitive locations.

Psoriasis isn't one condition — it's eight. This guide covers every type: what it looks like, where it appears, who gets it, and what care looks like. Includes a quick-reference comparison table and links to deep-dive articles on each type.

Palmoplantar psoriasis is one of the most functionally disruptive forms of the condition. This complete guide covers how to recognize it, what treatments work for hands and feet specifically, and the practical daily adjustments that reduce pain and prevent flares.