Usually, hyperthyroidism crisis manifests as hypermetabolic syndrome, which mainly includes increased body temperature, circulatory system symptoms, digestive system symptoms, neurological symptoms and so on. 1. Increased body temperature: the body temperature is often higher than 40℃ or higher. 2. Circulatory system symptoms: with significant tachycardia often above 160 beats / min, can be accompanied by arrhythmia, even heart failure. 3. Digestive system symptoms: usually accompanied by nausea, vomiting, emaciation and diarrhea, etc., which to a certain extent can lead to a drop in blood pressure or even shock. 4. Neurological symptoms: patients may have panic, mania and delirium, and in the late stage, they may have consciousness disorder or even coma. It is recommended that patients with hyperthyroidism crisis need to urgently consult the endocrinology department for treatment under the guidance of doctors.