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Living with Familial episodic pain syndrome

A rare inherited nerve condition with repeated episodes of intense pain in the upper body or legs.

Understanding Familial episodic pain syndrome

Familial episodic pain syndrome is a rare genetic nerve condition with repeated, intense pain episodes that run in families.

The pain mostly affects the upper body or the legs. Episodes can be brought on or worsened by tiredness, cold, fasting, weather changes, or physical stress. They may or may not lessen with age. Sweating, a fast heartbeat, trouble breathing, and paleness can come with them. It starts in newborns and infants.

Signs & symptoms

GARD describes these features in its summary:

  • Repeated episodes of intense pain
  • Pain in the upper body or legs
  • Sweating
  • Fast heartbeat
  • Trouble breathing
  • Paleness

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

    The Foundation for Peripheral Neuropathy 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: The Foundation for Peripheral Neuropathy
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 The Foundation for Peripheral Neuropathy 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 triggers my episodes, and how can I avoid them?
Which treatments can ease the pain?
Can genetic testing help confirm this diagnosis?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Dominant

Changes in genes cause this condition. It is autosomal dominant, which means a change in one copy of the gene can cause it. GARD does not name the gene.

GeneticNeurological

Also known as: feps; feps - familial episodic pain syndrome

Patient organizations

Source: NIH GARD · Familial episodic pain syndromeGARD ID 12684 · 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 Familial episodic pain syndrome.

Explore the Familial episodic pain syndrome blog

Explore research for Familial episodic pain syndrome

Explore actively recruiting Familial episodic pain syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Familial episodic pain syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
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  • 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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