Girls may have an upset stomach due to improper diet, abdominal cold and other physiological factors, but also due to food poisoning, acute gastroenteritis and other conditions. 1. Physiological factors: usually women usually often eat cold stimulating food such as ice cream or do not pay attention to their own warmth, resulting in a cold abdomen, may appear to have a tummy, is a normal physiological phenomenon. 2. Food poisoning: mainly eating food containing toxic substances such as poisonous mushrooms and other triggers, usually gastrointestinal food poisoning patients often appear abdominal pain, diarrhea, nausea, vomiting and other symptoms, can also occur in the case of upset stomach. Some patients may also have chills and fever. 3. Acute gastroenteritis: usually due to pathogenic microbial infections, ingestion of chemical toxins, taking gastrointestinal irritants, alcoholism and other conditions, and also with low immunity, malnutrition and other factors. General infectious acute gastroenteritis patients often appear abdominal pain, diarrhea and other symptoms, some patients can also be manifested as fatigue, loss of appetite and so on. It is recommended that women who have a tummy, first exclude physiological factors, if the disease is caused by, but also need to consult a doctor for specific treatment.