what are the side effects of thyroid gland surgery?
['Bleeding.', 'Infection.', 'Low parathyroid hormone levels (hypoparathyroidism) caused by surgical damage or removal of the parathyroid glands. These glands are located behind your thyroid and regulate blood calcium. ... ', 'Airway obstruction caused by bleeding.', 'Permanent hoarse or weak voice due to nerve damage.']