Abstract: Objective： To explore the factors of reoperation for thyroid carcinoma and to select a proper operative procedure. Methods: Fifteen cases with differentiated thyroid cancer subjected to reoperation were retrospectively analyzed. Results: Of the 15 patients, 12 were operated on twice, and 3 were operated on three times. The residual cancer was found in 60%(9/15) of the patients, that located at the primary site was found in 46.67%(7/15) of them, that transferred to the lymph node was found in 40% (6/15) of them. Conclusion: It is necessary to have a standard to deal with the neck nodular and tumor. Standard lobectomy shoule be done for thyroid tumor, and radical neck dissection should be done for those suspected of having lymph node metastasis.

Key words: Thyroid carcinoma, Recurrent cancer, Reoperation