Thyroid calcification suggests the presence of calcium deposits within a thyroid nodule. Thyroid calcification is a kind of thyroid ultrasonographic manifestation, which indicates that there are calcium deposits in the thyroid nodules caused by inflammation, tumor, hematoma absorption of calcification, and fibrous tissue hyperplasia, etc. Calcified foci can be in various forms, such as point-like, acicular, granular, and sand-like. Patients with calcification of the thyroid gland may have no obvious clinical manifestations in the early stage, but may also have the symptom of thyroid enlargement, and the enlargement of the thyroid gland may move up and down with swallowing. It is recommended to go to the hospital in time to see a doctor, under the guidance of the doctor with the specific situation to determine the cause of calcification and timely treatment.