Papillary thyroid carcinoma is the most common type of thyroid cancer, accounting for about 80% of all thyroid cancer cases. It typically develops in the thyroid gland, which is located in the front of the neck and produces hormones that regulate metabolism. This cancer usually grows slowly and often affects younger women more than men. The exact cause of papillary thyroid carcinoma is not fully understood, but certain genetic mutations and exposure to radiation may increase the risk. Most patients have a good prognosis, as this type of cancer is often detected early and can be effectively treated with surgery and, in some cases, radioactive iodine therapy.