Thyroid TI-RADS category 3 nodules are an ultrasound diagnosis that generally refers to thyroid nodules that fall into the category of grade 3, which has a clinical probability of being benign in about 98% of cases and malignant in 2% of cases. In clinical ultrasound diagnosis of thyroid nodules, need to be graded, the higher the grade indicates a higher degree of malignancy, class III nodules 98% probability of benign nodules, that is to say, the vast majority of the thyroid class III nodules are benign, only a small portion of the nodules may have malignant changes, but the same should not be taken lightly. When a Type 3 thyroid nodule is found, it is important to assess the growth rate and size of the nodule, whether the border of the nodule is clear, whether there is sediment-like calcification, whether the aspect ratio is greater than 1, and whether there is a possibility of malignant changes, as well as to determine the nature of the thyroid nodule. If you find three types of thyroid nodules, consult the Thyroid Surgery Department of a regular hospital, and under the guidance of a specialized physician, undergo regular review and timely treatment when problems are detected.