Gastroenteritis in children: First of all, its most typical sign is diarrhea, the number of bowel movements can even be around 10 times a day, and the shape of the bowel movement becomes, mainly, a feces similar to an egg flower. Secondly, there will also be nausea, vomiting, fever, and pox symptoms manifested. In the case of acute appendicitis in pediatric patients, the pain is very intense and most children experience crying, as well as high fever, vomiting, and even abdominal distention and diarrhea, and it is often mistaken for gastroenteritis due to similar signs. However, in pediatric acute appendicitis, it is detected earlier with high fever and can reach more than 39°C, accompanied by depression and chills, as well as signs of intoxication and shock. It is recommended to seek medical attention in time for similar gastrointestinal symptoms. Pediatric patients have a poor expression capacity and poor body resistance, and if acute gastroenteritis is not treated in time, there is a risk of water-electrolyte disturbance and acid-base imbalance due to severe diarrhea and vomiting. The rate of misdiagnosis of appendicitis in pediatric patients is high, and the mortality rate is also high, 10 times that of adults in pediatric patients. Once appendicitis occurs, it is easy to gangrene and perforation, and because the omentum is not mature, the infection is not well controlled and diffuse peritonitis will soon appear.