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Living with Eosinophilic granulomatosis with polyangiitis

A condition with asthma, high eosinophil counts, and inflamed blood vessels that can affect many organs.

Understanding Eosinophilic granulomatosis with polyangiitis

Eosinophilic granulomatosis with polyangiitis (Churg-Strauss syndrome) causes asthma, high eosinophil levels, and inflammation of small to medium blood vessels.

Eosinophils are white blood cells that help fight infection. The blood vessel inflammation (vasculitis) can affect the lungs, digestive tract, skin, heart, and nervous system. It can appear at a variety of ages.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Asthma
  • High eosinophil count in the blood
  • Inflamed blood vessels (vasculitis)
  • Belly pain
  • Joint pain
  • Tiredness (fatigue)

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include autoimmune and inflammatory disease specialists, brain and nervous system specialists, heart and blood vessel specialists and kidney specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    American Partnership For Eosinophilic Disorders, Autoimmune Association and Vasculitis Foundation may keep lists of experts for this condition.

Care & treatment

Care team
autoimmune and inflammatory disease specialists (rheumatologists); Brain and nervous system specialists (neurologists); Heart and blood vessel specialists (cardiologists); Kidney specialists (nephrologists)
Expert care
Expert lists: American Partnership For Eosinophilic Disorders, Autoimmune Association, Vasculitis Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with American Partnership For Eosinophilic Disorders and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Which organs are affected in my case and how will they be monitored?
Which specialists should be on my care team?
What treatments are available and what are their side effects?

Quick facts

Symptoms usually starta variety of ages

GARD says the exact cause is unknown, but it is thought to be an autoimmune disorder, in which the immune system attacks the body's own tissues.

RespiratoryNeurologicalKidney

Also known as: allergic angiitides; allergic angiitides, granulomatous; allergic angiitis; allergic angiitis and granulomatosis; allergic angiitis, granulomatous; allergic granulomatoses

Patient organizations

Source: NIH GARD · Eosinophilic granulomatosis with polyangiitisGARD ID 6111 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Eosinophilic granulomatosis with polyangiitis.

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