Iodine 131 treatment of hyperthyroidism for more than a year usually does not have the thyroid gland pressure pain, need to improve the examination to clarify whether there are other causes of thyroid pain.
Iodine 131 is used to treat hyperthyroidism by radiating beta rays that destroy thyroid tissue and reduce thyroid hormone production. Some patients develop radiation thyroiditis after receiving iodine 131 treatment, but it usually occurs about 1 to 3 months after receiving the treatment.
If the pressure pain of the thyroid gland occurs more than one year after the treatment of hyperthyroidism with iodine 131, it is necessary to consider other diseases, such as subacute thyroiditis, acute suppurative thyroiditis, and internal bleeding in the thyroid gland nodule. It is recommended to consult a doctor in time, improve the thyroid function, thyroid ultrasound and so on to further clarify, specific can consult a professional doctor’s opinion.