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Living with Situs inversus

A condition in which the internal organs are arranged as a mirror image of the usual layout.

Understanding Situs inversus

Situs inversus is a condition in which the internal organs are arranged as a mirror image of normal anatomy.

It can occur alone, with no other problems, or as part of a syndrome with other defects. Heart defects are present in about 5 to 10 percent of affected people. The underlying cause and genetics are complex, and cases have been reported in families.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. Based on its summary, the main feature is:

  • Organs placed in a mirror-image arrangement
  • Heart defects (in about 5 to 10 percent of people)

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 digestive system specialists, genetic specialists and heart and blood vessel specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Digestive system specialists (gastroenterologists); Genetic specialists (geneticists); Heart and blood vessel specialists (cardiologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
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 rare disease patient organizations for support
  • 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
Do I have any heart defects that should be checked?
Could it be part of a larger syndrome?
Should I tell other doctors about my organ arrangement?

Quick facts

InheritanceAutosomal Dominant, Autosomal Recessive

GARD says the cause and genetics are complex. Familial cases have been reported, and both autosomal dominant and autosomal recessive inheritance are listed.

GeneticGastrointestinal

Also known as: all organs on wrong side of body; complete situs inversus; complete situs inversus viscerum; complete transposition (morphologic abnormality); laterality sequence; situs inversus totalis

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Situs inversusGARD ID 4883 · 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 Situs inversus.

Explore the Situs inversus blog

Explore research for Situs inversus

Explore actively recruiting Situs inversus studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Situs inversus with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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