Calcification of the thyroid gland does not necessarily translate into cancer and is related to the type of calcification. Calcification of the thyroid is an imaging sign that can be seen in benign lesions such as thyroid nodules and also in malignant thyroid tumors. Calcifications can form in benign thyroid lesions due to inflammation or hematoma absorption and mechanization, such as calcifications that occur in approximately 25% of thyroid nodules. Malignant thyroid tumors may form calcification due to faster growth of tumor cells and proliferation of fibrous tissue, about 30%-50% of them will develop calcification, i.e., when calcification appears, it may already be a malignant thyroid tumor. In addition, studies have shown that there is a 10% chance that calcification of the thyroid gland will transform into cancer, most likely follicular carcinoma, but the time of transformation is variable, depending on the calcification and the patient’s physical condition. It is recommended that patients with thyroid calcification should go to the thyroid surgery department or oncology department of the hospital for a clear diagnosis, adjust their mindset, keep their mood relaxed and pay attention to rest and diet.