A circle of flesh in the neck is not necessarily hyperthyroidism. The reasons are as follows: a. Hyperthyroidism can have an enlarged thyroid gland. The normal thyroid gland is located directly in front of the neck and is butterfly-shaped in front of the tracheal 3 and 4 cricoid cartilages. The performance of a circle of flesh in the neck is not necessarily an enlarged thyroid gland, but may be a fat accumulation, etc. In addition to goiter, hyperthyroidism is also accompanied by other symptoms, such as protruding eyes, panic, hand trembling, fear of heat, sweating, weight loss, overeating, easy hunger, increased number of stools and other hypermetabolic symptoms. Third, there are corresponding changes in thyroid function tests, which show an increase in T3 and T4 and a decrease in TSH. So a circle of flesh in the neck is not necessarily an enlarged thyroid, let alone hyperthyroidism. If necessary, you can go to the hospital for thyroid ultrasound and thyroid function measurement to rule out hyperthyroidism.