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Hypothyroidism

Hypothyroidism

Også kendt som: Canine hypothyroidism, Thyroid hormone deficiency

DyrlægevurderetCatDogHastighed: LowHvor almindeligt: Common
Compiled from veterinary literature and clinical references· Updated 2026-07-30·How we create this

Kort sagt

Hypothyroidism is a common endocrine disorder in dogs caused by an underactive thyroid gland. It slows down metabolism, leading to weight gain, lethargy, and skin issues, but is highly manageable with daily thyroid hormone replacement therapy.

A tired Golden Retriever with a dull coat sitting calmly.
Hypothyroidism often causes subtle signs like lethargy and a dull coat, which can easily be mistaken for normal aging.

TL;DR. Almindelig, velbehandlet hormonmangel; daglig medicin genopretter energi og pels.

Sløvhed og mat pels forveksles let med aldring.

Hvad er det?

For lidt T4/T3. Primært hunde; sjældent hos kat.

Årsager og risikofaktorer

Primær kirtelskade. Middelalder.

Tegn at holde øje med

  • Letargi, vægtøgning, endokrin alopeci (hyppige)
  • Mat pels; pyodermi; hyperkolesterolæmi (hyppige)
  • Bradykardi; myksødem (lejlighedsvis)

A dog's tail with significant hair loss and dry skin.
Rottehale-alopeci er klassisk.

Hvordan dyrlæger diagnosticerer

TT4, frit T4, TSH, TGAA.

A close-up of a veterinary computer screen displaying a canine thyroid panel report.
Fuldt panel bekræfter diagnose.

Behandlingsmuligheder

Livslang Levothyroxine.

Prognose

Fremragende ved korrekt dosis.

Forebyggelse

Avlsscreening; sighthounds forsigtigt.

Hvornår ringe til dyrlægen

Akut myksødemkoma: stupor, kollaps, hypotermi.

Kilder

  • Veterinary Internal Medicine, pp. 774, 775, 779, 786, 788.

My highlights & notes

Tegn og symptomer

Dull, dry haircoat· CommonEndocrine alopecia· CommonHypercholesterolemia· CommonLethargy· CommonNonregenerative anemia· CommonPyoderma· CommonWeight gain· CommonTiring easily during activity· Commonmental dullness· Commonseborrhea· CommonAtaxia (wobbly, unsteady walking)· OccasionalCold intolerance· OccasionalFacial nerve paralysis· OccasionalDarkening of the skin· OccasionalMyxedema· OccasionalWeakness (low energy, no strength)· OccasionalBradycardia (slow heart rate)· Occasionalotitis externa· OccasionalSeizures· Rare

Racer med højere risiko

RiesenschnauzerAlaskan MalamuteBeagleBoxerEngelsk SetterGolden RetrieverGreyhoundSalukiSiberian Husky

Hvordan det diagnosticeres

  • Baseline serum free T4 (fT4) concentration by equilibrium dialysis
  • Baseline serum total T4 (TT4) concentration
  • Complete Blood Count (CBC)
  • Endogenous thyroid-stimulating hormone (TSH) assay
  • Serum Biochemistry Panel
  • Thyroglobulin autoantibody (TGAA) assay

Behandlingsmetoder

Levothyroxine· Line 1

Behandling skal ordineres af en autoriseret dyrlæge. Specifikke doser vises bevidst ikke.

Ofte stillede spørgsmål

What is Hypothyroidism?

Hypothyroidism is a common endocrine disorder in dogs caused by an underactive thyroid gland. It slows down metabolism, leading to weight gain, lethargy, and skin issues, but is highly manageable with daily thyroid hormone replacement therapy.

What are the symptoms of Hypothyroidism?

Dull, dry haircoat、Endocrine alopecia、Hypercholesterolemia、Lethargy、Nonregenerative anemia、Pyoderma、Weight gain、Tiring easily during activity

How is Hypothyroidism diagnosed?

Baseline serum free T4 (fT4) concentration by equilibrium dialysis、Baseline serum total T4 (TT4) concentration、Complete Blood Count (CBC)、Endogenous thyroid-stimulating hormone (TSH) assay、Serum Biochemistry Panel、Thyroglobulin autoantibody (TGAA) assay

How is Hypothyroidism treated?

Behandling skal ordineres af en autoriseret dyrlæge. Specifikke doser vises bevidst ikke.

Kilder

  1. Internal Medicine 5th · p. 774
  2. Internal Medicine 5th · p. 788
  3. Internal Medicine 5th · p. 775
  4. Internal Medicine 5th · p. 779
  5. Internal Medicine 5th · p. 786

Artiklen er generel oplysning og erstatter ikke dyrlægeråd. Hvis dyret er sygt, kontakt en dyrlæge.

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