Patients with hyperthyroidism may have symptoms such as agitation, hyperphagia, limb weakness, goiter, Graves’ ophthalmopathy, anterior tibial mucous edema and other hazards. 1. Symptoms: easy to be agitated and lose temper when encountering a little trouble; easy to be hungry and hyperphagia; young and middle-aged men will have weakness of limbs, which is manifested as the inability to stand up when sitting or squatting; weight loss will occur in the absence of dieting, and most of the patients will have varying degrees of thyroid enlargement without pressure and pain, and other symptoms. 2. Harms: patients with hyperthyroidism may also have Graves’ ophthalmopathy, pretibial mucous edema, thyroid crisis, thyrotoxic heart disease, apathetic hyperthyroidism and other harms. If the above related symptoms occur, it is recommended to consult the doctor in time and standardize the treatment under the doctor’s guidance to avoid serious complications.