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Living with Fryns syndrome

A condition affecting many parts of the body, often with a hole in the diaphragm, short fingertips and distinctive facial features, present from birth.

Understanding Fryns syndrome

Fryns syndrome is a condition that affects the development of many parts of the body.

Most people have a defect in the diaphragm, often a congenital diaphragmatic hernia, which can keep the lungs from developing properly. People often have underdeveloped fingertips and toes with small or missing nails, and distinctive facial features such as wide-set eyes, a broad flat nasal bridge, a large mouth, and a small lower jaw. It can also affect the brain, heart, digestive system, kidneys, and genitals. Those who live into childhood often have severe developmental delays.

Signs & symptoms

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

  • Hole in the diaphragm (diaphragmatic hernia)
  • Underdeveloped lungs
  • Short fingertips and small or missing nails
  • Cleft palate or lip
  • Intellectual disability
  • Wide-set eyes and small lower jaw

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 brain and nervous system specialists and genetic specialists.

  3. Consider genetic testing

    Changes in PIGN are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    CDH International may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: CDH International
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 CDH International 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
Should we have genetic testing for the PIGN gene?
What is the chance of this in a future pregnancy?
Which specialists should be involved in my baby's care?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Recessive
GenesPIGN

Changes in the PIGN gene cause it. It is autosomal recessive, which means a child inherits a changed copy of the gene from each parent.

GeneticNeurological

Also known as: diaphragmatic hernia-abnormal face-distal limb anomalies syndrome; diaphragmatic hernia, abnormal face and distal limb anomalies; diaphragmatic hernia, abnormal face, and distal limb anomalies; frns

Patient organizations

Source: NIH GARD · Fryns syndromeGARD ID 3699 · 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 Fryns syndrome.

Explore the Fryns syndrome blog

Explore research for Fryns syndrome

Explore actively recruiting Fryns syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Fryns syndrome 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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