High thyroid refers to the high level of thyroid hormone secreted by the epithelial follicular cells of the thyroid gland in an individual’s body, which is usually caused by an individual’s eating too much iodine-containing food, and the human body is prone to hyperthyroidism, which can lead to a series of clinical symptoms. For example, individuals may experience protruding eyes, increased heart rate, increased gastrointestinal function accompanied by weight loss, and in severe cases, rapid heart rate may lead to atrial and ventricular fibrillation, or even life-threatening underpumping of the heart. Hyperthyroidism should be consulted in a timely manner in the hospital. If accompanied by goiter, thyroid pathological puncture is necessary to prevent the presence of tumor factors, and relevant medications, such as methimazole, should be taken to limit the amount of thyroid hormones in the body, so as to alleviate the clinical symptoms.