Symptoms of gastrointestinal infections in children are mainly reflected in the following aspects: the first aspect, general symptoms, intestinal infections in children’s spirit is not as lively as usual, poor spirit, decreased appetite, and there may be different degrees of fever symptoms. The second aspect is upper gastrointestinal symptoms, which may include nausea and vomiting at the beginning of the disease. The third aspect is lower gastrointestinal symptoms, which may include abdominal discomfort, bloating, abdominal pain, diarrhea, etc. The fourth aspect is dehydration of varying degrees. The fourth aspect, different degrees of dehydration symptoms, because the infection after eating less, diarrhea, discharge will increase dehydration, the child manifested as dry lips, eye sockets sunken, thirst, urine volume decreased, etc., must be very important.