The heart rate of patients with hyperthyroidism is still in the normal range at 87. Hyperthyroidism refers to hyperthyroidism, which is caused by a lesion of the thyroid gland itself that produces too much thyroid hormone. The causes of hyperthyroidism include diffuse and nodular toxic goiter, as well as autonomous high-functioning adenomas of the thyroid gland. Patients with hyperthyroidism may exhibit agitation, restlessness and insomnia, palpitations, fatigue, excessive sweating, etc. Their cardiac manifestations are mainly related to the effect of thyrotoxicosis on the heart. Thyrotoxicosis can enhance the sensitivity of cardiac β-receptors to catecholamines, increase myocardial contractility, and cause peripheral vasodilatation to increase cardiac output. These effects often lead to tachycardia, increased cardiac output, atrial fibrillation and heart failure. The normal range of heart rate is 60~100 beats/min, and the heart rate of hyperthyroid patients is 87 beats/min, which is within the normal range, but it cannot be excluded whether there is any change of heart function, and it should be examined in regular hospitals, and hyperthyroidism should be treated as soon as possible.