Micropapillary thyroid cancer can be ablated; ablative surgery is not recommended for other types of thyroid cancer. Thyroid cancer foci <10 mm are called microscopic carcinomas. Thyroid cancer can be divided into papillary, follicular, medullary and undifferentiated carcinomas. Among them, papillary carcinoma is the most dominant type with low malignancy and good prognosis, while follicular carcinoma, medullary carcinoma are moderately malignant and undifferentiated carcinoma is highly malignant, and the prognosis of these three types is not as good as that of papillary carcinoma. Currently, ablation is mostly used for benign thyroid tumors, and it can also be used for microscopic papillary thyroid cancer, which has the advantages of low risk, small wound, and little interference with thyroid function. However, if ablation is used to treat follicular carcinoma, medullary carcinoma and undifferentiated carcinoma, it is prone to incomplete removal of cancer cells, recurrence and metastasis, so it is not recommended to use for these three types. Patients are advised to choose appropriate treatment plan according to the pathologic classification of thyroid cancer and the opinions of specialists, and follow the doctor's instructions for further examination and treatment. Regular review is also needed after ablation treatment.