Hyperthyroidism, or hyperthyroidism, is a group of endocrine disorders caused by increased secretion of thyroid hormones and is not contagious. The onset of hyperthyroidism is closely related to autoimmune disorders. In addition to immune disorders, hyperthyroidism may be triggered by mental factors such as excessive stress or stimulation by certain factors, causing palpitations, sweating, increased eating and stool intake, weight loss, etc. Most patients also have protruding eyes, eyelid edema and vision loss. The main cause of hyperthyroidism is an abnormal autoimmune response, in which the immune system produces antibodies against its own antigens, resulting in an autoimmune disease. Therefore, hyperthyroidism is not an infectious disease and is not contagious to others. If you find out that you or someone around you has hyperthyroidism, don’t worry too much. You should seek medical attention as soon as possible and receive regular treatment to avoid adverse consequences.