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Living with Familial hyperthyroidism due to mutations in TSH receptor

A rare inherited overactive thyroid with goiter that often returns during treatment.

Understanding Familial hyperthyroidism due to mutations in TSH receptor

Familial hyperthyroidism due to mutations in the TSH receptor is a rare overactive thyroid that runs in families.

It ranges from mild to severe, with a goiter (enlarged thyroid). It does not involve autoimmunity. It often comes back during treatment. It can appear at any time in life.

Signs & symptoms

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

  • Overactive thyroid (hyperthyroidism)
  • Enlarged thyroid (goiter)
  • Hand tremor
  • Weight loss
  • Trouble sleeping
  • Hyperactivity

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 genetic specialists, hormone specialists and kidney specialists.

  3. Consider genetic testing

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

Care & treatment

Care team
Genetic specialists (geneticists); Hormone specialists (endocrinologists); Kidney specialists (nephrologists)
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 National Kidney Foundation 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 genetic testing for the TSHR gene confirm this diagnosis?
Why does it keep returning during treatment, and what are the options?
Should my family members have thyroid tests?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Dominant
GenesTSHR

Changes in the TSHR gene cause this condition. It is autosomal dominant, which means a change in one copy of the gene can cause it.

GeneticKidneyEndocrine

Also known as: familial non-immune hyperthyroidism; hyperthyroidism, congenital nonautoimmune; hyperthyroidism, nonautoimmune, autosomal dominant; resistance to thyroid stimulating hormone; toxic thyroid hyperplasia, autosomal dominant

Patient organizations

Source: NIH GARD · Familial hyperthyroidism due to mutations in TSH receptorGARD ID 2858 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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