Not all people with hyperthyroidism experience hyperphagia. For patients with milder degrees of hyperthyroidism, small meals are generally normal. Hyperthyroidism is a group of disorders in which the thyroid gland is in a high-functioning state, producing and releasing excessive amounts of thyroid hormones. Increased levels of thyroid hormone in the blood can lead to symptoms in the nervous system, circulatory system, and digestive system, which are mainly characterized by panic, fear of heat, hyperphagia, lethargy, weight loss, etc. Most patients with hyperthyroidism have an appetite, and may have a small amount of food. Most patients with hyperthyroidism will show symptoms of hyper appetite, but some patients with milder conditions have less obvious symptoms and do not show obvious hyper appetite. Meal size is not an indicator of hyperthyroidism. Patients with hyperthyroidism are advised to seek medical attention if they experience discomfort during treatment.