Tertiary thyroid nodules, i.e. TI-RADS category 3 nodules, have a malignancy rate of less than 2%, observation and follow-up are usually sufficient, and surgery may be an option when there are symptoms of compression. 1. Observation and follow-up: Thyroid nodules of TI-RADS category 3 suggest that they may be benign, and the malignancy rate of the nodules is less than 2%. Patients are usually advised to have regular follow-up thyroid ultrasound to monitor the changes of the nodules, and to check the function of the thyroid gland at the same time. 2. Surgery: If the size of thyroid nodules is large, with obvious pressure symptoms, different degrees of dysphagia, dyspnea, neck swelling, pain, etc., it is recommended that the patient undergoes timely surgical treatment. When patients find thyroid nodules, they should go to regular hospitals in time to avoid delays and adverse consequences.