Thyroid hypoechoicity can be seen in thyroid adenocarcinoma, thyroid nodules, etc. Benign thyroid diseases with normal thyroid function and no clinical manifestations usually do not require treatment, while malignant lesions and compression symptoms require treatment. Hyperechoic thyroid is a manifestation of thyroid imaging, which can be seen in thyroid cancer, thyroid nodules and other diseases. It needs to be judged in combination with other imaging manifestations, such as whether the edges of the lesion are blurred, whether there is calcification, and the blood flow signal in the nodule, etc. If the imaging manifestations show that the possibility of benign is very high and the patient’s thyroid function is normal without any clinical manifestations, treatment is usually not needed and regular review is sufficient. However, if the nodule is large enough to cause pressure symptoms, or if it is diagnosed as malignant, or if the thyroid function is abnormal, then treatment should be considered. Patients with hyperechoic thyroid nodules are advised to go to the hospital and ask the doctor to determine whether treatment is needed in the light of the specific situation.