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Living with Microgastria-limb reduction defect syndrome

A rare condition present from birth with a small stomach and differences in the arms and hands, sometimes with other organ differences.

Understanding Microgastria-limb reduction defect syndrome

Microgastria-limb reduction defect syndrome is a rare condition in which a child is born with a small stomach and differences in the limbs.

GARD reports fewer than 60 known cases. Symptoms may include vomiting, aspiration pneumonia (lung infection from stomach contents), and growth problems. Differences in the heart, lungs, kidneys, and digestive system can also occur. GARD says it is caused by an error during early development of the embryo.

Signs & symptoms

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

  • Small stomach (microgastria)
  • Feeding difficulties and acid reflux
  • Trouble gaining weight and slow growth
  • Differences in the arm bones, hands, and fingers
  • Short thumb
  • Kidney differences

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, 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.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Digestive system specialists (gastroenterologists); 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 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
What feeding and nutrition support will my child need?
Which specialists should check the heart, lungs, and kidneys?
What can be done to protect the lungs from aspiration pneumonia?

Quick facts

Symptoms usually startNewborn and as an Infant

GARD says it is caused by an error that occurs during development of the embryo. Changes in genes (also called variants) are listed as a cause, but GARD does not name a gene.

GeneticNeurologicalGastrointestinal

Also known as: microgastria-limb reduction defects association

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Microgastria-limb reduction defect syndromeGARD ID 3640 · 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 Microgastria-limb reduction defect syndrome.

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