In pustular (PUHS-choo-ler) psoriasis, blisters of noninfectious
pus appear on the skin. Attacks of pustular psoriasis may be triggered by medications,
infections, stress, or exposure to certain chemicals.
- Widespread areas of reddened skin develop.
- Skin becomes very tender and painful.
- Pustules appear on the skin, dry, and then peel within several days, leaving the
skin with a glazed, smooth appearance.
- Pustules may reappear and erupt every few days or weeks.
Pustular psoriasis is further subcategorized as either "localized" or
"generalized". Generalized pustular psoriasis occurs in random, widespread
patches on the body. Localized pustular psoriasis may be present either on the hands
and feet (palmo-plantar pustulosis) or on the tips of the fingers (acropustulosis).
Generalized pustular psoriasis can appear quickly. Within as little as a few hours
after the skin becomes tender, blisters (pustules) of noninfectious pus can appear.
The pus inside consists of white blood cells. It is not an infection, and it is
Generalized pustular psoriasis is a rare form of psoriasis. It is spread over wide
areas of the body. It is also called von Zumbusch pustular psoriasis, named
after the physician who first described it in the early 1900's.
This form rarely appears in children, although when it does, the chance of improvement
is usually much better than it is for adults. Physicians generally avoid giving
systemic (oral or injected) treatments to children because the condition may improve
without those medications.
Images of pustular psoriasis
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Inverse psoriasis is found in skin folds such as the armpits, groin, under the breasts, around genitals and the buttocks. Inverse psoriasis is more common in people who are overweight and people with deep skin folds where friction and sweating occur.
Plaque psoriasis is the most typical form of this skin condition—4 out of 5 people with psoriasis have plaque psoriasis. The technical or scientific name for plaque psoriasis is psoriasis vulgaris (vulgaris means "common").
In pustular (PUHS-choo-ler) psoriasis, blisters of noninfectious pus appear on the skin. Attacks of pustular psoriasis may be triggered by medications, infections, stress, or exposure to certain chemicals.
Scalp psoriasis is one of the most common types of psoriasis—occurring in just over half of all people who suffer from psoriasis. Scalp psoriasis can range from mild, with slight fine scaling, to severe, with thick red plaques affecting the entire scalp.
Principal Authors: DermaHarmony Editorial Staff
Date of Publication: 03/13/2004