Feline hyperthyroidism has multiple treatment options including medication, radioactive iodine, surgery and dietary management with different welfare implications.
Choosing between treatment options depends on individual cat welfare alongside practical and financial considerations. Radioactive iodine offers the best long-term outcome - cure without daily medication stress - but requires hospitalisation that causes distress for some cats. Daily oral medication works well for cats accepting tablets but is stressful when dosing is difficult. Iodine-restricted diet requires the cat to eat only that food, compromising quality of life if they dislike it.