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Living with Childhood disintegrative disorder

A rare developmental condition where a child loses skills like speech and social ability after at least two years of typical development.

Understanding Childhood disintegrative disorder

Childhood disintegrative disorder is a rare developmental disorder where a child loses many skills after at least two years of typical development.

It begins before age three. Children lose behavioral and developmental skills in a dramatic way. Features include loss of speech, loss of bladder and bowel control, trouble with communication and social interaction, and repetitive autistic-like behaviors.

Signs & symptoms

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

  • Loss of speech
  • Loss of bladder control
  • Loss of bowel control
  • Trouble with social interaction
  • Repetitive movements
  • Anxiety

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. 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); 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
Which specialists should evaluate my child's loss of skills?
Is genetic testing available for our family?
What therapies or supports can help with communication and daily skills?

Quick facts

Symptoms usually startChild

GARD says changes in genes cause this condition, but it doesn't list specific genes.

GeneticNeurological

Also known as: cdd - childhood disintegrative disorder; childhood disintegrative disease; dementia infantilis; disintegrative psychosis; heller syndrome; heller's syndrome

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Childhood disintegrative disorderGARD ID 6040 · 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 Childhood disintegrative disorder.

Explore the Childhood disintegrative disorder blog

Explore research for Childhood disintegrative disorder

Explore actively recruiting Childhood disintegrative disorder studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Childhood disintegrative disorder 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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