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Living with Cerebellar ataxia-ectodermal dysplasia syndrome

A rare condition with poor coordination, missing or small teeth, and fine, sparse hair, with normal intelligence.

Understanding Cerebellar ataxia-ectodermal dysplasia syndrome

Cerebellar ataxia-ectodermal dysplasia syndrome is a rare condition with poor coordination from the cerebellum, missing teeth, and sparse hair.

Intelligence is normal. Brain imaging shows the cerebellum has shrunk. It begins in the newborn period.

Signs & symptoms

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

  • Poor coordination and balance (ataxia)
  • Unsteady walking
  • Differences in speech
  • Missing teeth (hypodontia) and small teeth
  • Fine hair
  • High-arched feet

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 genetic specialists and skin, hair, and nail specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    National Foundation for Ectodermal Dysplasias may keep lists of experts for this condition.

Care & treatment

Care team
Genetic specialists (geneticists); Skin, hair, and nail specialists (dermatologists)
Expert care
Expert lists: National Foundation for Ectodermal Dysplasias
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 National Foundation for Ectodermal Dysplasias and other patient organizations
  • 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 therapies can help with balance and speech?
What dental care will be needed?
Could genetic counseling help our family?

Quick facts

Symptoms usually startNewborn
InheritanceAutosomal Recessive

GARD says changes in genes cause this condition. It is inherited in an autosomal recessive way, so a child inherits a changed copy of a gene from each parent.

GeneticSkin

Also known as: cerebellar ataxia and ectodermal dysplasia; cerebellar ataxia co-occurrent with ectodermal dysplasia; ectodermal dysplasia and cerebellar ataxia

Patient organizations

Source: NIH GARD · Cerebellar ataxia-ectodermal dysplasia syndromeGARD ID 1189 · 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 Cerebellar ataxia-ectodermal dysplasia syndrome.

Explore the Cerebellar ataxia-ectodermal dysplasia syndrome blog

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  • Eligibility is confirmed by the study team

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