The Tirads classification is a classification table of thyroid lesion levels, often applied in clinical practice, helping doctors assess the risk of malignancy of thyroid tumors in order to monitor and provide appropriate treatment regimens.

Thyroid cancer is a common endocrine tumor and, if diagnosed, treated early can effectively prevent thyroid cancer from progressing. Accordingly, the rapid differential diagnosis of benign and malignant thyroid nodules from the very beginning requires the application of the value of ultrasound and the TIRADS classification.