High thyroid antibodies are caused by autoimmune diseases, and the patient should go to the hospital for relevant examinations to find out the endocrine antibodies in the body in order to get the results from the laboratory tests. Antithyroid antibodies are high because the patient has diabetes or other autoimmune diseases, resulting in high levels of antithyroid antibodies in the body, leading to thyroiditis or thyroid tumors. Patients will have enlarged neck, enlarged thyroid gland, and in severe cases, the thyroid gland will compress the trachea and esophagus, affecting the patient’s normal respiration and swallowing movements, and symptoms such as hoarseness will occur. Therefore, patients with high anti-thyroid antibodies may be due to their own inflammation of the thyroid gland or thyroid disease, which will lead to the development of thyroid cancer if it remains untreated for a long time.