Eosinophilic gastroenteritis (EG) is a rare disorder characterised by eosinophilic infiltration in the gastrointestinal tract. The disease most commonly occurs in the stomach, but can affect all sections and layers of the gastrointestinal tract, causing non-specific changes and symptoms that may delay diagnosis. A high index of clinical suspicion and diferent laboratory and imaging tests, including colonoscopy with biopsy, are essential for correct diagnosis.