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Living with Fingerprint body myopathy

A rare muscle condition present from birth with low muscle tone and weakness; fewer than 20 people have been described.

Understanding Fingerprint body myopathy

Fingerprint body myopathy is a rare benign muscle disorder present from birth with low muscle tone and weakness.

Under the microscope, the muscle fibers show many "fingerprint bodies" at their edges. Fewer than 20 people have been described. A few cases have appeared on their own, and some have a recessive pattern.

Signs & symptoms

GARD doesn't list a separate symptom list. Its summary describes:

  • Low muscle tone from birth (hypotonia)
  • Muscle weakness
  • Fingerprint bodies seen in muscle samples

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 tests, such as a muscle biopsy, confirm the diagnosis?
Which specialists should follow my child's muscle health?
What therapies may help with strength and movement?

Quick facts

Symptoms usually startNewborn
InheritanceX-Linked

Changes in genes cause it. GARD lists X-linked inheritance, but also notes some sporadic cases and cases of recessive transmission.

GeneticNeurological

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Fingerprint body myopathyGARD ID 12720 · 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 Fingerprint body myopathy.

Explore the Fingerprint body myopathy blog

Explore research for Fingerprint body myopathy

Explore actively recruiting Fingerprint body myopathy studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Fingerprint body 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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