Gastroenteritis is divided into acute gastroenteritis and chronic gastroenteritis. Acute gastroenteritis will have symptoms of nausea, abdominal pain, and vomiting; chronic gastroenteritis will have symptoms of abdominal fullness, hidden pain, loss of appetite, and chronic diarrhea. Gastroenteritis is one of the most common diseases in gastroenterology, is a variety of pathogenic factors lead to gastrointestinal mucosa acute and chronic injury of an inflammatory disease, the incidence is very high. Acute gastroenteritis is mostly related to pathogen infection, the onset is often more acute, there will be severe nausea, vomiting, abdominal cramps and other symptoms, accompanied by an increase in the number of bowel movements, the number of severe bowel movements up to more than 10 times, the feces into the watery or egg drop soup water-like. Chronic gastroenteritis tends to be slow onset, longer duration of the disease, there will be repeated gastrointestinal discomfort symptoms, such as gastrointestinal, abdominal pain, abdominal distension and discomfort, loss of appetite, recurrent diarrhea, and a small number of patients will also be accompanied by symptoms of weight loss. When the symptoms of gastroenteritis appear, you need to seek medical treatment in time.