A canine, mixed female, 4 months old, attended a medical consultation at the Veterinary Clinical Teaching Hospital (HCVD) Santo Tomás University (UST), Talca-Chile, because present urinary incontinence from the time exposed adoption, 2 months ago. The reason for the visit was the presentation of urinary incontinence from the time of its adoption, 2 months ago. Physical examination evidenced perivulvar urination drip and dermatitis. It was considered as the main pre-diagnosis ectopic ureter, so additional tests were requested, including an abdominal ultrasound and excretory urography, confirming the presence of unilateral ectopic ureter, intramural, which it was resolved surgically, performing a combined neoureterostomy and ureteroneocystostomy this because the income of the ureter site was lateral trigone, so had to change the intra-operatively technique. The results were successful, 100% correcting incontinent patient. It is important to know more than one surgical technique because the situation can change during the surgical procedure, as occurred in this case.