There are very many types of enteritis, such as bacterial infectious enteritis, viral enteritis, mycobacterial enteritis, pseudomembranous enteritis, etc. Most of them have gastrointestinal symptoms such as abdominal pain, diarrhea and other gastrointestinal symptoms, and systemic manifestations such as high fever and malaise can be seen in severe cases. 1. Bacterial infectious enteritis, related to Escherichia coli, salmonella and other infections, the onset of disease is more acute, after eating food contaminated by pathogenic bacteria, sudden lower abdominal pain, diarrhea, falling, nausea, vomiting, mucus blood stools or pus blood stools, watery stools and other manifestations. Some patients also have high fever, muscle pain, fatigue, headache and other manifestations. 2. Viral enteritis, mainly rotavirus and adenovirus. The incubation period of 1~2 days, the symptoms of diarrhea, abdominal pain, nausea, vomiting, etc., diarrhea is mostly yellow watery stools or eggdrop soup. The diarrhea is mostly yellow watery stools or eggdrop soup-like stools. It occurs several times a day, mostly with a sour odor, and may be accompanied by fever, runny nose, or other respiratory symptoms. In severe cases, there may be symptoms of water loss such as low urine output and sunken eye sockets. 3. Mycosis enterocolitica, mostly appearing after long-term oral broad-spectrum antibiotics, mainly manifested as chronic diarrhea, watery stools, occasionally pus and blood, often accompanied by abdominal pain, abdominal distension and other manifestations, usually no systemic manifestations, the younger patients can be accompanied by oral fungal infections. 4. Pseudomembranous enteritis, mostly secondary to the use of gentamicin, lincomycin and other drugs. The onset of acute, rapid development of the disease, manifested as diarrhea, stools for the yellow-green or aquamarine, in the stool can be seen in the membrane floaters, and abdominal pain, nausea, fever and other symptoms. If you have the above symptoms, you should consult a doctor for examination in time, clarify the cause of the disease and standardize the treatment under the guidance of the doctor.