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Living with Inflammatory bowel disease-recurrent sinopulmonary infections syndrome

A rare genetic immune disease with repeated sinus and lung infections and bowel inflammation starting in infancy.

Understanding Inflammatory bowel disease-recurrent sinopulmonary infections syndrome

Inflammatory bowel disease-recurrent sinopulmonary infections syndrome is a rare genetic immune disease with repeated sinus and lung infections and bowel inflammation.

It begins in infancy. People have frequent episodes of hard-to-treat diarrhea with belly pain and fever, along with eczema-like rashes. Lab tests show low IgG subclasses, weaker immune cell responses, and fewer natural killer cells.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. Its summary describes:

  • Repeated sinus and lung infections
  • Hard-to-treat diarrhea
  • Abdominal pain
  • Fever
  • Eczema-like rash

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 allergy and immune system specialists, digestive system specialists and genetic 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

    Crohn’s & Colitis Foundation and Immune Deficiency Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Allergy and immune system specialists (allergists / immunologists); Digestive system specialists (gastroenterologists); Genetic specialists (geneticists)
Expert care
Expert lists: Crohn’s & Colitis Foundation, Immune Deficiency 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 Crohn’s & Colitis Foundation 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 immune lab tests do I need, and how often?
How can we lower the chance of infections?
Can genetic testing find the cause?

Quick facts

Symptoms usually startInfant

GARD says the condition comes from deficits in parts of the immune system. It doesn't list a specific gene or inheritance pattern.

GeneticGastrointestinal

Also known as: inflammatory bowel disease, recurrent sinopulmonary infection syndrome; nfat5 (nuclear factor of activated t cells 5) haploinsufficiency; nfat5 haploinsufficiency

Patient organizations

Source: NIH GARD · Inflammatory bowel disease-recurrent sinopulmonary infections syndromeGARD ID 22205 · 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 Inflammatory bowel disease-recurrent sinopulmonary infections syndrome.

Explore the Inflammatory bowel disease-recurrent sinopulmonary infections syndrome blog

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  • Eligibility is confirmed by the study team

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