Thyroid 2.8cm*1.8cm or 2.8mm*1.8mm hypoechoic thyroid nodule with blurred border should be graded by TIRADS, and if necessary, puncture biopsy should be performed to clarify the nature of the nodule. Malignant nodules or nodules with pressure symptoms can be treated with surgery, benign nodules can be reviewed regularly, and medication can be taken to address the abnormalities in the thyroid function. Risk factors for malignancy of thyroid nodules include uneven internal echogenicity, unclear border, absence of or incomplete peritoneum, and abundant blood flow signals. If the thyroid gland is 2.8cm*1.8cm or the thyroid gland is 2.8mm*1.8mm hypoechoic nodule with blurred boundaries, the nodule is not necessarily malignant, and should be graded by the doctor for TIRADS. If necessary, a puncture biopsy can be performed to clarify the benign or malignant nature of the nodule. Benign thyroid nodules without obvious symptoms and normal thyroid function can be left untreated with regular checkups; malignant thyroid nodules or those with obvious pressure symptoms should be removed in time; thyroid nodules with abnormal thyroid function can be treated with corresponding medications. When thyroid nodules occur, it is recommended to go to the hospital and ask the doctor to make a judgment and give a treatment plan.