Thyroid surgery takes about 1.5 hours to 4 hours depending on the patient’s own condition, the type of surgery, and the skill level of the surgeon. Thyroid surgery is mainly due to thyroid lesions, partial or total removal of the diseased thyroid gland, with or without involving the removal of surrounding thyroid tissues. For some thyroid diseases with mild lesions and clear diagnosis, such as thyroid adenoma and benign thyroid nodule, only routine removal of diseased tissues is required without intraoperative examination or expansion of the surgical scope, and the surgical procedure is relatively simple, and the whole surgery can be completed in about 1.5 hours under the main knife of an experienced surgeon. For some complex conditions and unclear diagnosis of thyroid nodules, after routine thyroidectomy, it is also necessary to send rapid intraoperative pathological examination, the time of pathological examination is about 0.5 hours, such as pathological results of malignant thyroid cancer, it is also necessary to expand the scope of the operation, and further carry out the lymph node dissection in the neck area, the entire surgical process is about 3~4 hours. Thyroid surgery time cannot be accurately predicted and is affected by a variety of factors, surgical results and safety are relatively more important.