Thyroid function test, coagulation function test, electrocardiogram, liver and kidney function test, blood routine, etc. are required before thyroid ablation, and it is recommended to follow the doctor’s advice. 1. Thyroid function test: thyroid hormone needs to be controlled within a reasonable range before thyroid ablation. 2. Coagulation function test: Thyroid ablation is not recommended for patients with coagulation disorders. 3. Liver and kidney function test: observe whether the patient has liver and kidney dysfunction, and whether there are diseases such as liver insufficiency and renal insufficiency. 4. Blood routine: observe whether the patient has infection, anemia and other conditions. 5. Electrocardiogram: observe whether the patient has any arrhythmia, so as to avoid any adverse reaction during the operation. Patients who need to do thyroid ablation should be under the guidance of the doctor. Adequate preoperative preparation will help avoid intraoperative and postoperative complications.