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Living with Brachymorphism-onychodysplasia-dysphalangism syndrome

A rare genetic condition with underdeveloped pinky nails, short stature, and distinct facial features.

Understanding Brachymorphism-onychodysplasia-dysphalangism syndrome

Brachymorphism-onychodysplasia-dysphalangism syndrome (BOD syndrome) is a genetic condition with underdeveloped pinky nails, distinct facial features, and short stature.

Intellect ranges from normal to mildly impaired. It is seen in newborns. Signs are similar to, though milder than, Coffin-Siris syndrome, and how the two are related is not known.

Signs & symptoms

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

  • Underdeveloped or missing fingernails and toenails
  • Short stature
  • Short fingers or toes
  • Small head (microcephaly)
  • High forehead and prominent nose
  • Crossed eyes (strabismus)

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 bone and joint specialists, brain and nervous 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
Bone and joint specialists (orthopedists or orthopedic surgeons); Brain and nervous system specialists (neurologists); 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
Is genetic testing helpful to rule out Coffin-Siris syndrome?
How should growth and development be followed?
Should my other children be checked?

Quick facts

Symptoms usually startNewborn
InheritanceAutosomal Dominant

The cause is not known. It is thought to be autosomal dominant, but in many families it appears for the first time because of a new genetic change.

GeneticNeurological

Also known as: bod (brachymorphism, onychodysplasia, dysphalangism) syndrome; bod syndrome; brachymorphism with onychodysplasia and dysphalangism syndrome; senior syndrome

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Brachymorphism-onychodysplasia-dysphalangism syndromeGARD ID 918 · 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 Brachymorphism-onychodysplasia-dysphalangism syndrome.

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