Myxedema Coma

Myxedema coma is a rare condition that needs emergency care. It can occur in a person who has untreated, severe hypothyroidism. It usually occurs in older adults who have other illnesses, such as a serious infection or heart attack, along with their hypothyroidism. These life-threatening symptoms may occur: Mental…

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Medical review: Adam Husney MD, Kathleen Romito MD, Matthew I. Kim MD

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Myxedema Coma

Myxedema coma is a rare condition that needs emergency care. It can occur in a person who has untreated, severe hypothyroidism. It usually occurs in older adults who have other illnesses, such as a serious infection or heart attack, along with their hypothyroidism.

These life-threatening symptoms may occur:

  • Mental deterioration such as apathy, confusion, and psychosis
  • Extremely low body temperature (hypothermia)
  • Extremely slow heartbeat (fewer than 60 beats a minute)
  • Heart failure
  • Respiratory failure

Death can occur if myxedema coma is not treated. Emergency treatment may include thyroid hormone replacement given in a vein (intravenously) and steroid therapy.

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.