Thyroid nodules may or may not appear calcified, and thyroid nodule calcification is an abnormal change in calcium salt deposition. Calcification of thyroid nodules can occur when cellular damage results in impaired metabolism, leading to calcium salt deposition. After calcification of thyroid nodules, it is necessary to review thyroid ultrasound and other examinations regularly. After calcification of nodules, there is a risk of malignant transformation, which needs to be taken seriously, and the specific clinical manifestations and treatment measures are as follows: 1. Benign lesions: thyroid nodules, calcification may appear, but the edge of calcification is clear, short time without rapid growth, it is recommended to choose the appropriate treatment plan under the guidance of the doctor, such as regular follow-up. 2. Malignant lesions: Thyroid nodules with calcification, unclear calcification edges, rapid increase in size within a short period of time, or symptoms of compression such as dyspnea. Lobectomy or total resection of the thyroid gland may be used, and lymph node dissection may be performed if necessary. If thyroid nodules persist or increase rapidly within a short period of time, or if other uncomfortable symptoms appear, consult a doctor and choose the appropriate treatment plan under the doctor’s guidance.