It is important for the elderly to have thyroid nodules, which need to be diagnosed in a timely manner because the thyroid gland is the main organ of the body to regulate metabolism and it secretes thyroxine. Some thyroid nodules are high-functioning adenomas, which can cause the patient to have excessive secretion of thyroid hormone levels and cause diseases such as occult hyperthyroidism, which requires checking thyroid ultrasound, thyroid function, thyroid nuclear scan and so on. If the indicators are normal, there is nothing to worry about and regular review is sufficient. However, if the nodule is abnormal, surgery may be required. If the nodules are other diseases, such as nodular goiter, you may need to take eugenol or levothyroxine tablets for treatment. If the nodule is considered malignant, a thyroid puncture biopsy or direct surgery with a quick biopsy to characterize the nodule will be required.