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Living with Charcot-Marie-Tooth disease type 2D

An inherited nerve condition that causes slowly worsening weakness, mostly in the hands and arms, starting in the teen years or adulthood.

Understanding Charcot-Marie-Tooth disease type 2D

Charcot-Marie-Tooth disease type 2D is a form of axonal Charcot-Marie-Tooth disease, a nerve disease affecting movement and feeling.

Weakness mainly affects the hands and arms. Reflexes are absent or reduced in the arms and decreased in the legs. Progress is slow. It begins in the teen years or adulthood.

Signs & symptoms

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

  • Wasting of muscles in the hands
  • Weakness in the arms
  • Reduced reflexes
  • Loss of feeling in the hands and feet
  • Poor balance
  • Hand cramps brought on by cold

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 GARS1 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    Hereditary Neuropathy Foundation Inc., Charcot-Marie-Tooth Association and Muscular Dystrophy Association may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: Hereditary Neuropathy Foundation Inc., Charcot-Marie-Tooth Association, Muscular Dystrophy Association
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 Hereditary Neuropathy Foundation Inc. 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 GARS1 genetic testing confirm the diagnosis?
What hand therapy can help?
How can I manage cold-triggered cramps?

Quick facts

Symptoms usually startTeenager and as an Adult
InheritanceAutosomal Dominant
GenesGARS1

Changes in the GARS1 gene cause this condition. It is inherited in an autosomal dominant way, so one changed copy of the gene can cause it.

GeneticNeurological

Also known as: autosomal dominant charcot-marie-tooth disease type 2d; charcot-marie-tooth disease neuronal type 2d; charcot-marie-tooth disease type 2 caused by mutation in gars; charcot-marie-tooth disease, axonal, type 2d; charcot-marie-tooth disease, neuronal, type 2d; charcot-marie-tooth disease, type 2d

Patient organizations

Source: NIH GARD · Charcot-Marie-Tooth disease type 2DGARD ID 1251 · 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 Charcot-Marie-Tooth disease type 2D.

Explore the Charcot-Marie-Tooth disease type 2D blog

Explore research for Charcot-Marie-Tooth disease type 2D

Explore actively recruiting Charcot-Marie-Tooth disease type 2D studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Charcot-Marie-Tooth disease type 2D 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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