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Living with Neurodevelopmental disorder with alopecia and brain abnormalities

A rare genetic condition with developmental delay, hair loss, a large head, and differences in brain structure.

Understanding Neurodevelopmental disorder with alopecia and brain abnormalities

Neurodevelopmental disorder with alopecia and brain abnormalities is a rare genetic condition with developmental delay and hair loss.

People have global developmental delay, hair loss (alopecia), a large head, and differences in brain structure. Facial features can include a high, broad forehead, widely spaced eyes, and drooping eyelids. Other possible features include hearing loss, muscle stiffness, low muscle tone, small nails, and undescended testes. It can be seen during pregnancy or at birth.

Signs & symptoms

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

  • Delayed development
  • Missing eyebrows and sparse eyelashes
  • Large head (macrocephaly)
  • Low muscle tone at birth
  • Widely spaced eyes and drooping eyelids
  • Attention problems and aggressive behavior

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 ODC1 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
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 Children's Alopecia Project, Inc.
  • 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 ODC1 gene?
Which therapies can help with development?
Which specialists should be on my child's care team?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Dominant
GenesODC1

GARD lists changes in the ODC1 gene. The condition is autosomal dominant, which means one changed copy of the gene can be enough to cause it.

GeneticNeurologicalInherited Metabolic

Also known as: bachmann bupp syndrome; bachmann-bupp syndrome; global developmental delay-alopecia-macrocephaly-facial dysmorphism-structural brain anomalies syndrome; global developmental delay, alopecia, macrocephaly, facial dysmorphism, structural brain anomalies syndrome; nedaba; ornithine decarboxylase deficiency

Patient organizations

Source: NIH GARD · Neurodevelopmental disorder with alopecia and brain abnormalitiesGARD ID 17987 · 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 Neurodevelopmental disorder with alopecia and brain abnormalities.

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