Radioiodine therapy is the gold-standard treatment for feline hyperthyroidism, offering a permanent cure with a single treatment, but the isolation protocol required during treatment raises welfare considerations that require careful management.
Radioiodine therapy offers an outstanding welfare outcome for hyperthyroid cats — a permanent cure from a seriously debilitating disease through a single, low-risk procedure. However, the mandatory post-treatment isolation period requires individual cats to be confined alone in clinical environments without their owners for periods that can cause significant stress in social cats unaccustomed to hospitalisation. Facilities vary in how they manage isolation welfare: some provide enrichment, human contact from trained staff, and comfortable housing; others offer minimal stimulation. The welfare benefit of permanent cure substantially outweighs the temporary isolation stress for most cats, but facility quality and isolation management should be considered when choosing where to have the procedure performed.