Guttate Psoriasis

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Overview
Guttate Psoriasis

Overview

Causes

Symptoms

Diagnosis

Treatment

Complications

What is Guttate Psoriasis?

Guttate psoriasis is an autoimmune condition marked by the emergence of small, red, teardrop-shaped spots on the skin. This type of psoriasis primarily affects children and young adults and is characterized by its distinctive, scaly lesions that do not typically leave scars. Although less common than plaque psoriasis, it affects a significant minority of individuals with psoriasis, comprising less than one-third of cases.

Autoimmune Dynamics

As an autoimmune disease, guttate psoriasis involves the body mistakenly identifying its own skin cells as threats and attacking them. This can result in either isolated incidents or multiple flare-ups, where symptoms vary in intensity and duration. In some instances, the condition may persist indefinitely, requiring ongoing management strategies to control symptoms effectively.

Epidemiology of Guttate Psoriasis

Guttate psoriasis is predominantly seen in children and young adults, making it the second most prevalent type of psoriasis in this demographic, following chronic plaque psoriasis. It affects individuals of all sexes and races and can be the initial manifestation of psoriasis in a person, though it also occurs in those with a history of chronic psoriasis.

Etiology and Triggers

Infection-Induced Onset

The development of guttate psoriasis is closely linked to streptococcal infections, particularly of the upper respiratory tract, such as tonsillitis, or less commonly, perianal streptococcal dermatitis. These infections can stimulate an immune response that leads to the characteristic skin lesions of guttate psoriasis. Additionally, this condition has been associated with other viral infections, including SARS-CoV-2 and enteroviruses, indicating a broader infectious trigger base.

Genetic and Environmental Factors

While guttate psoriasis can be triggered by bacterial and viral infections, genetic predisposition also plays a crucial role. Environmental factors such as stress, physical skin trauma, and certain medications (e.g., antimalarials and beta blockers) can precipitate or exacerbate outbreaks.

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