What kind of disease is thyroid tumor? Thyroid tumor is shaped like walnut, hard in texture and can move up and down with swallowing. However, some patients may have rapid enlargement and thickening of the neck within a short period of time. Further development may affect breathing, and a few patients may have hoarseness or difficulty in swallowing. In addition, it can be secondary to hyperthyroidism and can also develop malignant changes. Is thyroid tumor a cancer? Thyroid tumors are divided into two categories: benign and malignant. (a) Benign thyroid tumors are mainly thyroid adenomas, which account for about 60% of thyroid diseases. According to domestic statistics, the ratio of female to male is 3:1, and the onset of the disease is mostly during the active period of thyroid function, i.e. 20-40 years old, and gradually decreases after 40 years old. (2) Malignant tumors of thyroid gland 1. Thyroid cancer: papillary carcinoma accounts for 75%, follicular carcinoma accounts for 10%-15%, medullary carcinoma accounts for 3%-10%, undifferentiated carcinoma accounts for 5%-10%. 2. 2. malignant lymphoma of the thyroid gland is rarely found in the thyroid gland alone, but is often a part of systemic malignant lymphoma. Metastatic carcinoma is rare. 4. Other primary malignant tumors such as thyroid sarcoma are extremely rare. Are the consequences of thyroid tumors serious? There are benign and malignant thyroid tumors, the majority of which are benign. Benign thyroid tumors are not serious in themselves and usually have no obvious symptoms when the tumor is small. However, if left untreated, the tumor will gradually increase in size. Individual patients with larger tumors may have difficulty breathing, swallowing and hoarseness due to compression of the trachea, esophagus and laryngeal nerve by the tumor. Since benign thyroid tumors have a 10% to 20% malignancy rate, they should be treated as soon as they are detected. Malignant thyroid adenoma is thyroid cancer, in which most patients have low to moderate malignancy and the survival rate is relatively high, with an average 5-year survival rate of 83% to 95% after surgery.