Hyperthyroidism refers to an overactive thyroid gland, which usually presents with the symptom of goiter, and it is recommended to seek prompt medical attention and treatment under the guidance of a doctor. In hyperthyroidism, the thyroid gland is in a hyperfunctional state, producing and releasing excessive amounts of thyroid hormones continuously, characterized by high metabolism and increased excitability of the sympathetic nervous system due to increased secretion of thyroid hormones. The majority of patients with hyperthyroidism complain of an enlarged thyroid gland. It is diffusely symmetrically enlarged, soft, and moves up and down during swallowing. In a few patients, the goiter is asymmetric or the enlargement is not obvious. Due to the increased blood flow to the thyroid, vascular murmurs and tremors can be heard in the lateral lobes of the upper and lower lobes, especially in the upper pole of the thyroid gland, which is more obvious. Diffuse symmetrical enlargement of the thyroid gland with murmur and tremor is a special sign of this disease, which is important in diagnosis. Once you find an enlarged thyroid gland, you should go to the hospital in time to find out the cause of the disease and treat it.