Iodine Status and Characteristics of Papillary Thyroid Cancer

Inclusion Criteria: * Age range: 18\~65 years old, gender not limited; * Living in the residential area for at least 5 years; * Patients diagnosed clinically with thyroid cancer and scheduled for thyroid surgery, with pathological diagnosis of papillary thyroid cancer; * Complete clinical data: including general information, relevant laboratory tests, pathological reports, surgical reports, ultrasound reports, etc. Exclusion Criteria: * Pathological diagnosis of other types of thyroid cancer; * Diagnosed with other types of cancer; * There are serious comorbidities of the heart, liver, and kidneys;