The symptoms of vomiting when eating and drinking water may be caused by excessive one-time eating, cold, food poisoning, gastrointestinal diseases, chemotherapy for malignant tumors, and pregnancy reactions, which require targeted treatment after the cause is clearly identified, such as adjusting diet, paying attention to warmth, and taking oral medication, etc. 1, excessive one-time eating: mostly seen in children, as children’s digestive function is not fully established, too much one-time eating will occur when eating The symptoms of vomiting when eating and drinking water, should cultivate good eating habits, regular diet, eat less and more meals; 2, cold: cold later lead to spleen and stomach disorders, will also cause digestive discomfort, can pay attention to keep warm, avoid blowing wind, cold after improvement; 3, food poisoning: toxic substances stimulate the gastrointestinal tract, leading to vomiting phenomenon. Bed rest, and eat a light liquid or semi-liquid diet, supplemented with sugar saline, oral belladonna tablets for abdominal cramps, and infusion and rehydration therapy at the hospital for severe vomiting; 4, gastrointestinal disorders: gastrointestinal disorders can lead to digestive dysfunction, especially acute gastroenteritis, and oral acid-suppressing and anti-emetic drugs such as omeprazole, pantoprazole, metoclopramide, ondansetron hydrochloride tablets, etc. If it lasts longer, it is recommended to perfect gastroscopy to exclude gastrointestinal tumor; 5. Malignant tumor chemotherapy: chemotherapy drugs damage gastrointestinal mucosa and digestive function, causing nausea and vomiting, oral acid-suppressing and antiemetic drugs can be taken. Diet should be light, nutritious, easy to digest, can eat less residue semi-liquid or less residue soft food, avoid greasy, difficult to digest food; 6, pregnancy reaction: some women of childbearing age will have pregnancy vomiting after pregnancy, suggest obstetrics consultation for further treatment.