The indications for total/near-total thyroidectomy for micropapillary thyroid cancer include: ① history of head and neck radiation exposure during adolescence or childhood; ② family history of thyroid cancer; ③ multifocal cancer, especially bilateral cancer; ④ bilateral cervical lymph node metastasis or distant metastasis; ⑤ extra-glandular invasion of the cancer, which cannot be guaranteed to be completely removed by surgery and requires postoperative 131I therapy. The relative indications for total/near total thyroidectomy for micro papillary thyroid cancer are: ① ipsilateral cervical lymph node metastasis; ② with high risk factors for thyroid cancer recurrence; ③ combined with contralateral thyroid nodules; ④ pathological high-risk subtypes (hypercellular subtype, columnar cell subtype, diffuse sclerotic type, solid/islet type, eosinophilic subtype).