Different departments are selected for thyroid diseases according to different situations: 1. Abnormal thyroid function, such as hyperthyroidism, hypothyroidism, subclinical hypothyroidism, etc., or women preparing for pregnancy, need to check the level of thyroid function, and patients are advised to go to endocrinology for treatment; 2. Patients with ectopic thyroid need to go to surgery for surgical treatment; 3. Patients with large thyroid nodules, more than three centimeters in size. It may compress the trachea and esophagus, and patients are advised to go to surgery for treatment. 4. Patients with thyroid cancer, which is more than one centimeter or protrudes beyond the thyroid envelope, may have lymph node metastasis, and patients are advised to go to surgery for treatment.