Malignant thyroid nodules can affect a person’s life and health if they are not treated aggressively. Thyroid cancer is also a kind of cancer and also has various ways of cancer cell survival as well as metastasis, for example, lymphatic metastasis and bloodstream metastasis may occur, especially when the primary thyroid lesions metastasize to important organs such as lung, liver and brain, which can put a person’s life and health at risk. Most of thyroid cancers are papillary thyroid cancers, if detected and treated actively, more than 80% of patients will not have life threatening health after surgery, while undifferentiated thyroid cancer is more malignant and often affects people’s life and health, and the chance of recurrence after surgery is relatively high, but the incidence of this malignant tumor is very low.