After stomatoscopic surgery for thyroid cancer, patients will have oral discomfort, dyspnea, convulsions, neck discomfort and other symptoms. 1. Oral discomfort: Since stomatoscopic surgery for thyroid cancer is a relatively large surgery, the surgery may affect the superior laryngeal nerve and the recurrent laryngeal nerve, which will cause postoperative discomfort such as choking on drinking water, hoarseness and lowered voice. In addition, due to prolonged opening of the mouth during the surgery, it will lead to oral discomfort. 2. Difficulty in breathing: after stomatoscopic surgery for thyroid cancer, due to edema of the throat, there may be difficulty in breathing and a feeling of suffocation. 3. Convulsions: there is a possibility of damaging parathyroid gland in stomatoscopic surgery for thyroid cancer, which may cause persistent hypocalcemia, causing convulsions of the patient, which are commonly seen in tachycardia, numbness of sensory hypersensitivity, numbness of lips and mouth, and so on. 4. Neck discomfort: the scar formed by thyroid cancer stomatoscopic surgery will cause neck discomfort, which is a common symptom of thyroid cancer surgery. In addition, there will be yellowish and milky white fluid from the drainage tube after the surgery.