Eosinophilic gastroenteritis, blood test can find a large number of eosinophils, mainly manifested as abdominal pain, abdominal distension, nausea, vomiting, diarrhea and other symptoms. Eosinophilic gastroenteritis mostly refers to patients due to allergies or parasitic stimulation and other causes of gastroenteritis manifestations, at this time the patient’s intestinal wall severe edema, stimulation of intestinal contents, diarrhea symptoms. Gastrointestinal peristalsis is slow, causing patients to experience abdominal distension. Gastrointestinal dysfunction can lead to the occurrence of nausea and vomiting in patients. Gastroenteritis causes inflammation to irritate the gastrointestinal mucosa, causing patients to experience abdominal pain and other discomforts. When the patient has eosinophilic gastroenteritis, it is important to regularly review blood tests, colonoscopy and other tests to clarify the extent of the lesion and deal with it accordingly.