Abdominal distension and pain are mainly caused by abnormal intestinal motility, intestinal obstruction, acute gastritis, acute infection, etc. 1. abnormal intestinal motility: patients with abnormal intestinal motility will stop venting and defecating from the anus, resulting in abdominal distension, nausea, vomiting and fever symptoms. The patient should immediately fast from food and water for gastrointestinal decompression, follow the medical prescription for anti-infection, intravenous fluid supplementation, nutritional support and other treatments, and appropriate activities to promote the recovery of intestinal peristaltic function; 2. Intestinal obstruction: Patients with intestinal obstruction are unable to pass the intestinal contents smoothly due to intestinal obstruction, resulting in abdominal distension and abdominal pain. Severe intestinal obstruction will be complicated by peritonitis, and the laboratory blood picture will be increased, which requires further selection of surgical dissection, intestinal adhesion release or partial resection of the intestinal tube, etc.; 3, acute gastritis: if the patient has recently eaten irritating food or drink a lot of alcohol, appearing abdominal distension, abdominal pain, consider the possibility of irritating gastritis, generally need to take drugs to inhibit gastric acid secretion and protect the gastric mucosa under the guidance of doctors, such as Omeprazole, pantoprazole, rabeprazole, etc.; 4. Acute infection: If the patient has symptoms of abdominal distension and abdominal pain in addition to fever and diarrhea, the patient is considered to be suffering from acute infection, and should promptly go to the hospital for routine blood tests and follow medical advice for antibiotic treatment.