Whether thyroid nodules require treatment generally depends on medical guidelines. Thyroid nodules larger than 1cm with malignant features typically require biopsy. The decision for a biopsy should be made by a professional ultrasonographer after examination. Therefore, upon detecting a nodule, it is crucial to visit a specialized hospital for further ultrasound examination. If the nodule is malignant, we recommend surgical removal. If it is benign, close observation is advisable. However, treatment is necessary under the following conditions: First, if the nodule is too large and compresses other organs, causing breathing difficulties, localized swelling, pain, or other discomforts. Second, if the nodule grows quickly, increasing in volume by more than 50% within six months, the possibility of malignancy should be considered and treatment is needed. Third, if the thyroid nodule is located behind the sternum, which is called an ectopic thyroid nodule, surgical treatment is necessary. If the thyroid nodule is large enough to affect the aesthetics of the neck, surgical treatment may also be considered.