Bacterial enteritis diarrhea is caused by a bacterial infection that irritates the intestines. Bacterial enteritis is usually caused by bacterial infection due to improper diet, improper hygiene or misuse of antibiotics. As a result of bacterial infection, the bacteria constantly stimulate the intestinal tract, which may cause dysbiosis in the intestinal flora, resulting in intestinal dysfunction, which in turn leads to diarrhea symptoms in patients. In addition, when the inflammation is severe, the inflammatory factors are constantly released and spread, which may cause the intestinal mucosa to show symptoms of suppuration. When there is excessive secretion of purulent fluid, the intestinal mucosa will continue to ooze mucus as well as pus and blood, leading to the development of inflammatory exudative diarrhea. Bacterial enteritis usually causes diarrhea, vomiting and other conditions, and may cause electrolyte imbalance in the patient’s body. During the period of diarrhea, the patient should be supplemented with fluids and nutrients in a timely manner to avoid dehydration caused by severe diarrhea. When bacterial enteritis occurs should immediately seek medical treatment, follow the doctor’s instructions to give antibiotic treatment, to avoid aggravation of the condition affecting the life. In summary, bacterial enteritis diarrhea is mainly caused by bacterial infection and inflammation stimulation.