Not all patients with hyperthyroidism will cause the appearance of thick neck. Clinically, hyperthyroidism with thick neck is mainly seen in Graves disease. Graves disease is a disease that causes the thyroid gland of the patient to show diffuse enlargement. When the swelling is serious, it may also compress the larynx, recurrent laryngeal nerve, trachea, etc., resulting in dyspnea and hoarseness. When the patient has hyperthyroidism, it is generally necessary to use antithyroid hormone drugs (such as methimazole) under the guidance of a doctor in a timely manner. At the same time, it is also necessary to regularly review the thyroid function, and adjust the follow-up drug dosage according to the review. In our daily life, we need to eat high protein, high vitamin and high calorie diet. We need to avoid food with high iodine such as kelp and iodized salt.