What are the symptoms of gastroenteritis?

Gastroenteritis is an inflammatory disease affecting the mucous membranes of the gastrointestinal tract, often accompanied by the following typical symptoms: 1. **Abdominal pain or discomfort**: Manifested as dull or cramping pain in the upper abdomen or periumbilical area, which may episodically worsen, particularly after consuming cold or irritating foods. 2. **Diarrhea**: Increased frequency of bowel movements, with stools often appearing watery, mucoid, or containing undigested food remnants. In severe cases, watery diarrhea and dehydration may occur. 3. **Nausea and vomiting**: Most patients experience nausea, with vomit typically consisting of gastric contents. In severe cases, bile or blood may be present in the vomitus. When the above symptoms appear, timely medical attention should be sought to identify the underlying cause through diagnostic tests and to implement appropriate treatment measures, in order to prevent disease progression leading to serious complications such as electrolyte imbalance and dehydration.