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Living with Adult-onset nemaline myopathy

A fast-progressing type of muscle disease that starts very late in life, with weakness in the arms and neck.

Understanding Adult-onset nemaline myopathy

Adult-onset nemaline myopathy is a rapidly progressing type of nemaline myopathy that begins very late in life.

Nemaline myopathy is a group of muscle diseases. This type starts in adulthood.

Signs & symptoms

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

  • Weak arm muscles
  • Weakness in the neck muscles that bend the neck
  • Muscle aches
  • Slow movements
  • Muscle disease (myopathy)

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.

  4. Connect with expert centers

    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: 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 A Foundation Building Strength 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
Which tests confirmed this type of nemaline myopathy?
How should my breathing and swallowing muscles be checked?
Which specialists should be on my care team?

Quick facts

Symptoms usually startAdult

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

GeneticNeurological

Also known as: nemaline myopathy, late onset type

Patient organizations

Source: NIH GARD · Adult-onset nemaline myopathyGARD ID 12824 · 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 Adult-onset nemaline myopathy.

Explore the Adult-onset nemaline myopathy blog

Explore research for Adult-onset nemaline myopathy

Explore actively recruiting Adult-onset nemaline myopathy studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Adult-onset nemaline myopathy 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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