Patients and families of patients with papillary thyroid cancer often ask how long they can live after surgery. Actually, doctors do not tell fortune. However, we can give a definite answer, that is, don’t worry because patients with papillary thyroid cancer have a very good prognosis. The reason why we say so is based on clinical studies from some international medical institutions with rich experience in the treatment of papillary thyroid cancer. There are various prognostic scoring systems for papillary thyroid cancer that are used to assess the malignancy of the disease on the one hand, and to guide the scope and size of surgery on the other. These scoring systems include the MACIS score, the AGES score and the AMES score. MACIS is a scoring system obtained by Mayo Medical Center (one of the most famous medical centers in the United States) based on statistical analysis of a large number of cases, and is an improvement on the famous AGES scoring system, which is considered to be the most accurate scoring system for papillary thyroid cancer.