Thyroid nodules are caused by local abnormal growth of thyroid cells. Why does this piece of tissue grow faster than other thyroid tissues? Is it because of malignant transformation? Whether treatment is needed or not depends on the benign or malignant evaluation of thyroid nodules. What tests are needed to judge benign and malignant? In order to determine its benign and malignant diseases, the following examinations may be required: Determination of thyroid function, especially detection of serum thyroid stimulating hormone (TSH) level; Neck ultrasound examination, including thyroid color Doppler ultrasound and neck lymph nodes; For thyroid nodules with diameter > 1 cm and serum TSH reduction, thyroid thyroid radionuclide imaging and even fine needle aspiration pathology should be performed to Read More …