Thyroid grade 3 generally refers to thyroid nodule grade 3 (TI-RADS grade 3). Patients with grade 3 thyroid nodules usually cannot be cured on their own, but if the nodules are benign, they can be treated without treatment and can be examined regularly. According to the TI-RADS classification of thyroid nodules, grade 3 thyroid nodules are likely to be benign, with a malignant rate of less than 2%, and are usually benign diseases such as thyroid cysts, high-functioning adenomas, nodular goiter, etc. There is also a possibility of malignant nodules of no more than 2%. There is a possibility of malignant nodules in no more than 2% of cases. Regular checkups are sufficient without treatment, and biopsies can be performed to clarify the benign or malignant nature of the nodules if necessary. Grade 3 thyroid nodules are usually not self-curable, and patients are advised to seek timely medical attention.