The likelihood of malignancy of a grade 3 thyroid nodule is less than 2%, and there is no evidence to suggest how long it will take for the nodule to become malignant. If the size of the nodule is small, it needs to be observed dynamically and followed up periodically, and if the nodule is too large to produce pressure symptoms or cosmetic problems, it can be treated surgically according to the situation. Thyroid nodule grade 3 usually does not require fine needle aspiration biopsy. It is recommended that the ultrasound examination of the thyroid gland should be repeated once every six months. If the size of the thyroid nodule is too large, resulting in pressure symptoms or cosmetic problems, surgical treatment is feasible under the premise that the puncture biopsy confirms that the nodule is benign, and pathological examination should be conducted after the operation. In daily life, patients with thyroid nodules should develop good dietary and living habits, pay attention to more rest, avoid staying up late, and consume more fresh vegetables and fruits. In the course of dynamic observation of thyroid nodules, if there is any enlargement of thyroid nodules, further treatment should be clarified under physician’s assessment in a timely manner. Please go to the hospital if you feel unwell.