Normally we say that insulin secretion affects blood glucose, and secondly, the liver can also have an effect on blood glucose, especially if liver damage causes metabolic disorders. This is because the liver plays a very important role in the synthesis of thyroxine-binding globulin and the metabolism, conversion, and excretion of thyroxine. Hyperthyroidism is often complicated by liver damage due to medications, or the disease itself, which is related to the direct toxic effects of thyroid hormones, hypermetabolism, heart failure, immunization, and anti-hyperthyroid medications, which often cause hypoglycemia to occur. Hypoglycemia occurs in hyperthyroidism combined with hepatic damage mainly due to impaired inactivation of insulin, prolonged half-life, and enhanced action; secondly, the glycogen content in liver and muscle is significantly reduced, and the ability of gluconeogenesis is decreased; and there is also high metabolism that increases glucose consumption. So if you have hyperthyroidism, you need to check your blood sugar and liver function regularly, and if you take medication regularly, you need to prevent liver damage, and of course, you need to pay attention to close observation to prevent hypoglycemia. Just a reminder: hyperthyroidism, if there is liver damage, must pay attention to the occurrence of hypoglycemia.