There are more thyroid surgeries, such as total thyroidectomy. Any surgery has certain risks, such as bleeding, nerve damage, hypokalemia, etc. It is recommended to treat under the guidance of specialized doctors. 1. Bleeding: Bleeding is inevitable during surgery, and there are many blood vessels around the thyroid gland. If the hemostasis is insufficient or the ligature slips, there may be obvious bleeding. If the bleeding is large, it may compress the organ and cause breathing difficulties. 2. Nerve damage: The laryngeal reflex nerve may be contused or stitched by the surgery, which may cause the patient’s speaking voice to change. 3. Hypocalcemia: The parathyroid glands can regulate the body’s blood calcium level. If the parathyroid glands are mistakenly removed during the surgery, the patient may suffer from hypocalcemia and have convulsions. All surgeries have certain risks. It is recommended that patients actively cooperate with the doctor to improve the relevant examinations, which can reduce the probability of surgical risks.