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Living with Peripheral resistance to thyroid hormones

A condition present from birth in which the body's tissues don't respond well to thyroid hormone; most people have no symptoms.

Understanding Peripheral resistance to thyroid hormones

Peripheral resistance to thyroid hormones is a permanent condition present from birth in which the body doesn't respond well to thyroid hormone.

Most people have no symptoms. Some have features of an underactive thyroid, such as sleeping more, feeding trouble, constipation, and low muscle tone. Babies can have prolonged jaundice, a large tongue, large soft spots on the skull, and a swollen belly with a hernia at the belly button.

Signs & symptoms

GARD doesn't list specific symptoms, but the summary describes these, which some people have:

  • Less activity and more sleep
  • Feeding trouble and constipation
  • Jaundice that lasts longer
  • Large soft spots on the skull
  • Large tongue
  • Low muscle tone

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

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
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 thyroid tests confirm this condition?
Does my child need treatment, or only monitoring?
Should family members be tested for thyroid hormone receptor gene changes?

Quick facts

In 90% of cases, GARD says it is caused by dominantly inherited changes in the gene for thyroid hormone receptor beta.

Also known as: peripheral resistance to thyroid hormone

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Peripheral resistance to thyroid hormonesGARD ID 12734 · 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 Peripheral resistance to thyroid hormones.

Explore the Peripheral resistance to thyroid hormones blog

Explore research for Peripheral resistance to thyroid hormones

Explore actively recruiting Peripheral resistance to thyroid hormones studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Peripheral resistance to thyroid hormones 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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