Thyroidectomy may cause a series of complications or sequelae, specifically: 1) choking and coughing, which is mainly caused by damage to the supraglottic nerve; 2) hoarseness, which is mainly caused by damage to the laryngeal nerve; 3) cramps in the hands and feet, numbness in the hands and feet, even numbness around the mouth and a series of low calcium performance, which is mainly caused by damage to the parathyroid gland; 4) after thyroid surgery, you may need to take medication for life. The thyroid gland is a very important endocrine organ in the human body, mainly secreting thyroid hormones. After surgery, people’s endocrine metabolism will be disrupted, lacking this hormone, requiring long-term lifelong supplementation of thyroid hormone.