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Living with Chondroectodermal dysplasia with night blindness

A rare genetic bone condition with short stature, nail and tooth differences, and trouble seeing in dim light.

Understanding Chondroectodermal dysplasia with night blindness

Chondroectodermal dysplasia with night blindness is a rare genetic bone development disorder with short stature, nail differences, and night blindness.

People have proportionate short stature, enlarged curved nails, and fewer teeth than usual (hypodontia). Weak bones with a tendency to fracture, a clubfoot-type deformity with a changed gait, ear infections, and watery eyes from narrow tear ducts are common. GARD lists onset in the newborn period and infancy.

Signs & symptoms

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

  • Curved, enlarged fingernails and toenails
  • Changes in tooth shape
  • Walking changes (gait disturbance)
  • Delayed bone maturity
  • Watery eyes (epiphora)
  • Middle ear infections

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, 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
Bone and joint specialists (orthopedists or orthopedic surgeons); 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
Can genetic testing find the cause?
How should night vision and eye health be followed?
What care can help with bone strength and walking?

Quick facts

Symptoms usually startNewborn and as an Infant

GARD says changes in genes cause this condition but doesn't name a specific gene.

GeneticSkin

Also known as: chondroectodermal dysplasia with night blindness syndrome

Patient organizations

Source: NIH GARD · Chondroectodermal dysplasia with night blindnessGARD ID 21408 · 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 Chondroectodermal dysplasia with night blindness.

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