When diarrhea does not occur, it may also be enteritis. Typically, enteritis is an inflammatory response of the intestine caused by different causes such as microbial infection and immune dysregulation of the body, often manifesting as abdominal pain, diarrhea, bloody stools, and fever. Among them, although diarrhea is a common manifestation of enteritis, there are also clinical cases in which patients with enteritis have symptoms of severe abdominal pain without diarrhea. For example, in patients with acute enteritis, most of them will have diarrhea symptoms, but a small number of patients may only show abdominal pain accompanied by an increased number of stools, but not to the extent of diarrhea. In contrast, patients with milder symptoms in the early stages of chronic enteritis usually only show pain and vague pain in the abdomen, stools with pus or blood, or pasty stools, and no diarrhea symptoms. For patients with enteritis, if symptoms such as abdominal pain, nausea and vomiting occur, they should seek medical attention promptly to clarify the diagnosis and treatment through stool examination, colonoscopy, CT and other examination methods. Generally, analgesia, electrolyte supplementation and rehydration treatment are required under the guidance of a doctor, in addition to anti-infection treatment with drugs. If conservative treatment is ineffective, surgical treatment is also available. In addition, in daily life, patients with enteritis should pay attention to dietary hygiene to avoid cross-infection, and patients with infectious enteritis should avoid sharing utensils and household items with their families.