There is no exact figure for the one-time cost of Iodine 131, which is related to the type of thyroid disease, the radiation dose of iodine, and regional or medical institution differences. It usually ranges from 2,000 yuan to 8,000 yuan, and it is recommended to consult with your local hospital. Iodine 131 treatment is a treatment that destroys thyroid cells through radioactive iodine and suppresses thyroid function. It is often used in the treatment of hyperthyroidism and thyroid cancer, etc. It has the advantages of being safe and effective, not affecting the reproductive function, etc., and is widely used in the clinic. The cost of one iodine 131 session includes the cost of liver function, blood routine, thyroid ultrasound, thyroid function, iodine uptake and other examinations and treatments. It is also related to the type of thyroid disease and the dose of iodine. If the dose of treatment for hyperthyroidism is small, the cost is relatively small. In case of thyroid cancer and combined lymph node metastasis, the dose of iodine is larger and the cost will increase, even reaching over ten thousand dollars. Therefore, the specific price of iodine 131 treatment should be consulted at the endocrinology department or nuclear medicine department of the local hospital, and the cost of treatment should be estimated according to one’s own situation.