Hyperthyroidism with nodules has the possibility of cancer. Theoretically, any nodule has the possibility of becoming cancerous, but some nodules have a high chance of becoming cancerous while others have a low chance of becoming cancerous. Ultrasound examination of thyroid gland can be performed to assess the possibility of malignancy of nodules and decide whether surgery is needed based on the ultrasound results. Surgery for hyperthyroidism with malignant nodules has to go through the necessary preoperative preparation, otherwise the risk of surgery will be high because postoperative hyperthyroid crisis may occur and endanger the patient’s life. In case of benign nodules, you can review the thyroid ultrasound regularly, every 3-6 months depending on the situation. However, to actively treat hyperthyroidism, you should visit the endocrinology and general surgery departments of the hospital.