The essential objectives for thyroidectomy are avoidance of injury to the recurrent laryngeal nerves (RLNs), conservation of the parathyroid glands, an accurate haemostasis, and an excellent cosmesis. In the last 10 years, major improvements and new technologies have been proposed and applied in thyroid surgery, among these mini-invasive thyroidectomy, regional anaesthesia, and intraoperative neuromonitoring. Moreover, new devices for achieving dissection and haemostasis have been proposed. The purpose of ligating vessels is to maintain the surgical site free from an excess of blood and reduce blood loss in patients. This chapter reviews relevant medical literature published in the English language since 1990 on thyroid surgery techniques with well-controlled trials on haemostasis and dissection. Searches were last updated October 2005.