Hyperthyroidism can be seen in the endocrinology or thyroid surgery department, or in the emergency department if it is a critical condition. Hyperthyroidism, i.e., hyperthyroidism, is a condition in which different departments are chosen depending on the patient’s condition. If the patient has protruding eyes, enlarged neck, palpitations, hyperphagia, increased stool frequency or even diarrhea, agitation, low-grade fever, excessive sweating, fatigue and other discomforts, he/she can go to Endocrinology or Thyroid Surgery Clinic. If the patient has hyperthyroidism crisis, i.e. the patient has high fever, body temperature often reaches 40℃ or higher, rapid heart rate, heart rate over 160 beats/minute, which may be accompanied by arrhythmia or heart failure, etc., profuse sweating, extreme agitation, excitement and trembling, and even psychiatric symptoms, delirium or even coma, etc., the patient should go to the Emergency Department in a timely manner. Patients can choose the appropriate department according to their own situation and go to the medical institution in time to avoid delaying their condition.