Understanding Allergic purpura: Causes, Symptoms, and Management

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Allergic purpura

by Alike Medical Team ∙ Updated on June 13, 2023

Additional names

This group contains additional names: - Henoch Schonlein purpura - Iga vasculitis

General

Henoch-Shonlein purpura (HSP), or IgA vasculitis, is an inflammation of the small vessels in the skin, joints, intestines and kidneys. Many people with HSP have a purple rash on their lower legs and buttocks and may complain of stomach aches and arthritis. It is a condition which can be seen in all ages, but is more common in children under 10 years old. In many cases, the disease develops after an upper respiratory infection.

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Signs & symptoms

Symptoms of HSP may include a red-purple rash, that looks like bruises, on their buttocks, legs, and feet. People who have HSP may also suffer from swollen, and sore joints, pain, belly pain, nausea, vomiting and bloody stools. There could also be kidney damage which usually goes away once the disease passes.

Diagnosis

Diagnosis is based upon findings from medical history and physical examination. There is no specific test for this condition, but blood and urine tests may help rule out other conditions. Biopsy from the kidney may show deposits of IgA protein.

Treatment

Henoch-Shonlein purpura usually goes away on its own but corticosteroids may shorten the time and intensity of the illness.

Note

☝ We provide information on prescription and over-the-counter medicines, diagnosis, procedures and lab tests. This material is provided for educational purposes only and is not medical advice, diagnosis or treatment.

National Institutes of Health ∙ World Health Organization ∙ MedlinePluse ∙ Centers for Disease Control and Prevention

☝ All information has been reviewed by certified physicians from Alike

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