Thyroid nodule grade 3 is generally referred to as TIRADS grade 3, which suggests that the nodule may be benign and the malignancy rate is less than 2%, which is not considered serious, and it is recommended to have regular checkups. The TIRADS classification of thyroid nodules is mainly based on the ultrasound results, and the nodule size, whether the edge is regular or not, internal echoes, blood flow signals and so on to assess the benign and malignant nodules, which are classified into grades 1 to 6. Thyroid nodules with a TIRADS grade of 3 have a malignancy rate of less than 2% and may be benign. They are usually benign such as thyroid cysts, high-functioning adenomas, and nodular goiter, but there is also no more than a 2% chance that they are malignant nodules. It is recommended that patients with thyroid nodules consult a doctor in time, complete the relevant examinations, and follow the doctor’s instructions for treatment.