High thyroglobulin antibodies indicate that damage has occurred to the thyroid cells and predisposes to hypothyroidism. In addition to high thyroglobulin antibodies, the body may also have high serum TSH levels, which can lead to a decrease in metabolic rate and sympathetic excitability. In the early stages, patients may not have any specific symptoms, but may experience chills, weakness, swelling of the hands and feet, and affect the nervous system, which may lead to memory loss. In addition, symptoms such as unresponsiveness, hoarseness, hearing impairment, and pallor may occur. The treatment is to restore the level of thyroid hormones in the body to the normal range, which can be done by taking medications, such as levothyroxine, and should be accompanied by strict lifestyle adjustments.