Hypoechoic nodules of the thyroid gland are a common disorder of the thyroid gland. Generally speaking, depending on the size and nature of the nodules, the clinical manifestations are different, and the treatment methods are also different. I. Hypoechoic thyroid nodules with obvious compression symptoms, such as dyspnea, dysphagia, it is recommended that patients undergo surgery as soon as possible. Intraoperative section suggests that thyroid nodules are malignant tumors, which requires central group and lateral cervical group lymph node dissection to avoid residual cancer cells. Second, if the size of thyroid nodule is small and there is no obvious pressure symptom, the ultrasound examination considers the possibility of benign, and suggests the patient to recheck the thyroid ultrasound in about 3 months. Third, if the ultrasound examination found that the thyroid nodule combined with blood flow signal, aspect ratio greater than one, calcification and other manifestations. This suggests that the nodule has the risk of cancer, and it is recommended that the patient undergo fine needle aspiration to clarify the nature of the lesion.