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Living with Warsaw breakage syndrome

A genetic condition present from infancy that affects learning, growth, hearing, the heart, and facial features.

Understanding Warsaw breakage syndrome

Warsaw breakage syndrome is a genetic condition that can cause several differences in the body, starting in the newborn period.

People have intellectual disability that ranges from mild to severe. Growth is slower than usual starting before birth, leading to short stature and a small head (microcephaly). Facial features may include a small forehead, short nose, small lower jaw, and prominent cheeks. Hearing loss from inner ear nerve damage and heart differences are also common.

Signs & symptoms

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

  • Global developmental delay
  • Small head size (microcephaly)
  • Slow growth before and after birth
  • Hearing loss from the inner ear
  • Hole in the heart wall (ventricular septal defect)
  • Narrow or sloping forehead

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 cancer specialists and genetic specialists.

  3. Consider genetic testing

    Changes in DDX11 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Cancer specialists (oncologists); Genetic specialists (geneticists)
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 Warsaw Breakage Syndrome Foundation
  • 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
Could DDX11 genetic testing help our family?
What hearing and heart checks does my child need?
Which specialists should be on my child's care team?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive
GenesDDX11

Warsaw breakage syndrome is caused by changes in the DDX11 gene. A child inherits a changed copy of the gene from each parent (autosomal recessive).

Genetic

Also known as: wabs

Patient organizations

Source: NIH GARD · Warsaw breakage syndromeGARD ID 13708 · 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 Warsaw breakage syndrome.

Explore the Warsaw breakage syndrome blog

Explore research for Warsaw breakage syndrome

Explore actively recruiting Warsaw breakage syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Warsaw breakage 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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