Thyroid cancer is a type of cancer that starts in the thyroid gland, which is located in the front of the neck. The thyroid produces hormones that help regulate metabolism, heart rate, and body temperature. There are different types of thyroid cancer, with the most common being papillary thyroid carcinoma. Symptoms may include a lump in the neck, changes in voice, or difficulty swallowing. Most thyroid cancers are treatable, especially when detected early. Treatment options often include surgery to remove the thyroid gland, radioactive iodine therapy, and sometimes external radiation. Regular check-ups and monitoring are important for those diagnosed with thyroid cancer to ensure the best possible outcome.