Children with high fever and stomach pain may be related to acute gastroenteritis, respiratory tract infection and other diseases. 1. Acute gastroenteritis: if children are cold or eat unclean food, it may trigger acute gastroenteritis, which may not only have fever, but also nausea, vomiting, abdominal pain, diarrhea and so on. 2. Respiratory tract infection: If children have respiratory tract infection, they may have fever, and fever or even high fever may cause gastrointestinal dysfunction, which may cause intestinal spasm and stomach pain. It can be seen that children who have stomach pain when they have a high fever should look for the cause of the stomach pain in time and find out the cause of the disease before treatment.