Elderly people with nausea and vomiting should consider the following aspects: 1, organic lesions: to exclude organic lesions, it is best to perform gastroscopy, barium gastrointestinal tract imaging, abdominal CT to understand the presence of chronic gastritis, gastric ulcer, gastroesophageal reflux disease, cardia loss of relaxation, gastroparesis, especially to exclude the presence of stomach tumors, such as gastric cancer, gastric lymphoma, etc., to give appropriate treatment for different causes. 2 The symptoms of nausea and vomiting can be caused by irregular diet, irregular meals or eating too greasy, cold food, taking certain drugs, staying up late, poor sleep, etc. 3, gastrointestinal neurosis: pay attention to the exclusion of gastrointestinal neurosis caused by gastrointestinal symptoms. In daily life, avoid the intake of raw, cold, hard, spicy, greasy and other irritating foods, avoid overeating, eat less and more, chew and swallow slowly to promote physical recovery.