Malignant thyroid nodules can be treated as follows: surgery, levothyroxine, radioactive iodine therapy, etc. The specific treatment method should be determined according to one’s own condition, and attention should be paid to regular review after treatment. 1. Surgery: after finding malignant thyroid nodules, if the patient can tolerate surgery, radical surgery is needed to remove the tumor tissues, and neck lymph node dissection is done if necessary. 2. Levothyroxine: After surgical treatment, levothyroxine supplementation is usually needed as a replacement therapy to maintain the stability of thyroid hormones. 3. Radioactive iodine therapy: Radioactive iodine therapy is recommended if there is significant spread of the tumor to tissues other than the thyroid gland, if the size of the malignant nodule is too large, or if the tumor has invaded blood vessels. After the occurrence of malignant nodules in the thyroid gland, it is necessary to go to the regular medical institutions, complete the relevant examinations, and actively treat the disease, and should be regularly reviewed after treatment.