You can find out whether you have hyperthyroidism by clinical symptoms, triggering factors, etc. It is recommended that you go to a regular hospital to complete the relevant tests, such as nail function, to give a definitive diagnosis. Symptoms of hyperthyroidism involve multiple systems, mainly including fatigue, excessive sweating, low fever, irritability, anxiety, agitation, palpitations, arrhythmia, weight loss, hyperphagia, diarrhea, progressive muscle weakness, protruding eyes, etc. Some patients may have atypical symptoms, with heavy weight loss and obvious weight loss. Some patients may have atypical symptoms, heavy systemic symptoms, obvious emaciation, which may be manifested as loss of appetite, fear of cold, dry skin, neurological depression, and so on. Predisposing factors such as excessive iodine intake, viral infection, withdrawal or stress of glucocorticoid therapy, childbirth, mental stress, radiation and interferon gamma application can lead to hyperthyroidism. It is recommended that patients with suspected hyperthyroidism or the presence of triggering factors for hyperthyroidism should seek timely medical treatment and improve the relevant examinations so as not to delay the condition.