A spayed female, 1-year-old, Himalayan, weighing 1.89 kg, was referred. The clinical signs included anorexia, depression, vomiting, urinary incontinence and vaginal discharge for 7 days after elective ovariohysterectomy. In laboratory examination, there was moderate azotemia. Abdominal radiographic findings included heterogeneous serosal detail loss and right renomegaly. Abdominal ultrasonography showed hyperechoic ascites, bilateral polycystic kidneys, right hydronephrosis, and right hydroureter. Excretory urography demonstrated an ureterovaginal fistula. Exploratory laparotomy confirmed this diagnosis and explained that the right ureter had been included in a ligature around the cranial vagina.