Can hyperthyroidism be cured?

“Cure” depends on cause and treatment. Graves’ disease can sometimes go into long-term remission after months to years of antithyroid drug therapy; radioactive iodine or surgery often results in definitive control but commonly produces hypothyroidism needing lifelong levothyroxine. Toxic nodules often require RAI or surgery for definitive cure. Treatment goals are individualized: symptom control, normalization of hormone levels, and minimizing long-term complications