Why thyroid cancer is not recommended to do iodine 131

Thyroid cancer is a common malignant tumor in the head and neck. Generally, if thyroid cancer can be treated surgically, it is mainly radical surgery. As for whether iodine 131 treatment is needed, there is still debate in clinical practice at this stage. For some types of thyroid cancer, such as undifferentiated thyroid cancer and medullary thyroid cancer, iodine 131 treatment is not recommended. Because these two types of thyroid cancer do not take iodine 131 or take very little iodine 131, the treatment effect is not good. In addition, for more common differentiated thyroid cancer, such as thyroid papillary carcinoma and thyroid follicular carcinoma, if there is no distant metastasis, the patient is relatively young, after surgery can also be radical. Postoperative endocrine therapy, it is not recommended to do iodine 131 treatment, because iodine 131 treatment may also cause some side effects of the second tumor.