Eosinophilic gastroenteritis is a rare primary disease distinguished by abundant eosinophilic infiltration of the intestinal mucosa. It concerns variable and nonspecific gastrointestinal symptoms according to the depth of infiltration and may cause severe complications. We reported a case of a 52-year- old woman without prior diseases with 8-month history of diarrhea, abdominal pain, ascites and weight loss. After having performed routine tests and rolled out most common diseases, we get to the diagnosis. Eosinophilic gastroenteritis requires a high suspicion for the diagnosis; because of chronic symptoms, it shows a burden on the nutritional status and quality of life of patients. Therefore, it is imperative that physicians should review this topic and consider it within differential diagnosis of chronic diarrhea and abdominal pain.