Clinical And Diagnostic Insights Into Hypothyroidism In A Shih-Tzu: A Case Report
March 2026
in “
Indian journal of veterinary and animal sciences research.
”
Studysummary This case study found that treating a dog with primary hypothyroidism using oral levothyroxine sodium led to significant clinical improvement within six weeks.
Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
This case report discusses a 4-year-old neutered female Shih Tzu diagnosed with primary hypothyroidism, characterized by symptoms such as progressive weight gain, lethargy, bilateral symmetrical alopecia, and cold intolerance. Physical examination revealed a dull coat, seborrhoeic dermatitis, bradycardia, and mild obesity. Laboratory tests showed low total thyroxine (T4) and free T4 levels with elevated thyroid-stimulating hormone (TSH), confirming the diagnosis. The dog was treated with oral levothyroxine sodium at 20 µg/kg twice daily, leading to significant clinical improvement within 6 weeks.
