Pediatric diarrhea: or diarrheal disease, is a group of multi-pathogenic, multi-factor-induced gastrointestinal syndrome characterized by an increase in the number of stools and changes in stool properties. Clinical manifestations: 1, light: often caused by dietary factors and extraintestinal infections lead to chaotic onset can be acute or slow, mainly gastrointestinal symptoms, loss of appetite, occasional overflow or vomiting, the number of stools increased, but each stool volume is not much, thin or with water, yellow or yellow-green, sour taste, common white or yellow-white milk flaps and foam. No dehydration and systemic toxicity symptoms, mostly in a few days to heal. 2, heavy: mostly caused by intestinal infection. In addition to heavy gastrointestinal symptoms, there are also more obvious symptoms of dehydration, electrolyte disorders and systemic infection, such as fever, mental irritability or depression, drowsiness, and even coma and shock. 3, gastrointestinal symptoms, low appetite, often vomiting, severe cases may vomit coffee-colored liquid; frequent diarrhea, stool more than 10 times a day to several 10 times, mostly yellow watery or egg-like stool, containing a small amount of mucus, a few children may also have a small amount of blood stool. 4, water, electrolytes and acid-base balance disorders.