Thyroid tumor is cancer.

Thyroid tumor is not necessarily cancer. Thyroid tumor is a broad concept. Tumor includes benign tumor and malignant tumor clinically. Malignant tumor derived from epithelial cells is called carcinoma, while benign tumor of thyroid tumor is most common thyroid adenoma. Thyroid cancer mainly includes papillary carcinoma, follicular carcinoma, medullary carcinoma and undifferentiated carcinoma. For thyroid tumor is benign tumor or cancer, normal there are two ways to distinguish, the simplest is to touch the texture of the tumor, general benign tumor texture is soft, clear boundary, good activity, and cancer normal boundary is unclear, texture is hard, poor activity.