In the case of young women who want to vomit when they eat: 1, consider whether they are pregnant, because nausea and vomiting are typical symptoms of early pregnancy. 2, for most men or non-pregnant women, the desire to vomit when they eat may be caused by gastrointestinal diseases, such as reflux esophagitis, gastritis, gastric ulcer, and partly due to liver disease caused by indigestion, which leads to poor nausea, do not want to eat. 3. A small percentage of people may have neuropsychiatric diseases, such as headache and blurred vision, which may be caused by cranial lesions. 4. Most people have a loss of appetite before meals due to gastrointestinal disorders, so it is recommended to go to a regular hospital to present a detailed medical history and further clarify the condition in parallel with relevant examinations.