One day when Yu was on emergency duty, a 52-year-old woman came to our hospital with stomach pain and vomiting, the family suspected that it could be sleeping pill poisoning. When the patient came to the hospital, although the epigastric pain was obvious, frequent vomiting and fast heart rate, he was clear and mentally alert, the CT of the upper abdomen was normal, and the ECG was fast, so Yu told him that it was not sleeping pill poisoning, and that the common cause was acute gastritis. The patient improved after emergency treatment for abdominal pain and vomiting, refused to be hospitalized for observation, and wanted to be prescribed sleeping pills because of insomnia. The patient’s weight loss was obvious and the thyroid gland was found to be diffusely enlarged, so hyperthyroidism was suspected. Hyperthyroidism is common in women of all ages. Young people often have symptoms such as hyperphagia, hunger and thinness, fear of heat, panic and hand trembling, insomnia, etc. Elderly people often have atypical symptoms, or only insomnia, without other symptoms such as hyperphagia and hunger and fear of heat, etc. Or because they have diabetes, diabetes itself often has hyperphagia and hunger and thinness, thus ignoring the existence of hyperthyroidism.