Thyroid nodules calcification can be divided into coarse calcification and microcalcification. Coarse calcification is generally benign, and benign conditions do not require special treatment. When a large nodule causes compression symptoms and affects our appearance, surgical removal can be considered. Microcalcification is mostly likely to become malignant, therefore, cytological biopsy of the thyroid should be performed. If it is benign, we can continue to observe it. If it is malignant, we can treat it with surgery, comprehensive therapy, or radiotherapy.