This document provides an overview of thyroid cancer, including classification, incidence, risk factors, diagnostic evaluation, surgical treatment, use of radioiodine, staging, follow-up recommendations, and management of recurrent or metastatic disease. Key points discussed include the increasing incidence of differentiated thyroid cancer, diagnostic evaluation using ultrasound and fine needle aspiration, total thyroidectomy as the standard initial surgery, use of radioiodine ablation for selected patients, lifetime follow-up including physical exam and serum thyroglobulin testing, and treatment of recurrence or metastasis with surgery, radioiodine, external beam radiation, or chemotherapy depending on the specific clinical situation.