A five-month-old male Shiraze cat was referred to the Mansoura Veterinary Teaching Hospital of Mansoura University, Mansoura, Egypt for evaluation of a 5-days history of swelling in the caudal ventral abdomen after trauma, persistent straining and inability to urinate. Clinical examination, abdominal ultrasonography and exploratory laparotomy revealed herniation and herniorraphy was attempted. The herniated organs were urinary bladder and intestine through an abdominal wall defect. Clinical signs resolved after surgical reduction of the intestine and urinary bladder. Follow-up by telephone three months postoperatively confirmed that the cat had no problems with defecation or micturition. Entero-cystocele in a young cat after trauma has not been reported previously to the author's knowledge.