Eosinophilic gastroenteritis is an uncommon disease with an unknown natural history, and its relation to digestive allergies has not been confirmed. This study reports the case of a 27 year old patient who developed eosinophilic gastroenteritis with gastric, intestinal, rectal and peritoneal localisations. In the Congo, massive blood hypereosinophilia suggests digestive parasitosis and gastroenteritis with malnutrition and cutaneous symptoms suggest AIDS/HIV, making the present agnosis uncommon.