Enlargement of the jaw after thyroid surgery to remove the thyroid gland is usually normal, mainly because of the poor return of lymphatic vessels caused by the surgery, causing localized edema of the jaw. Thyroid surgery by incision in the neck, postoperative re-suture of the skin, it will lead to the original blood vessels, lymphatic reflux is not smooth, local edema, it will cause localized enlargement of the lower jaw, is a normal phenomenon, 1~2 months or so will gradually disappear, the lower jaw to return to normal, there is no need to worry about too much. After the thyroid surgery to remove the jaw swelling, long time without relief, may be the postoperative bleeding, is more serious, need to go to the hospital as soon as possible, take surgical treatment, the blood clots will be discharged, to avoid endangering the health of the body, daily life, pay attention to the light diet, reduce the intake of fluids, you can relieve the symptoms. If you have any symptoms of physical discomfort, you should go to the hospital for consultation and treatment in time to avoid delaying your condition.