Hyperthyroidism is the most common hormonal disorder in middle-aged and older cats, causing significant discomfort if left untreated but responding well to several effective therapies.
Cats with untreated hyperthyroidism experience chronic discomfort including heart palpitations, muscle weakness, and gastrointestinal distress. The condition progresses and causes organ failure. Regular veterinary screening of senior cats allows early diagnosis and treatment before suffering becomes severe. All treatment options including medication, diet, and radioiodine therapy have good success rates.