Ureteral obstructions are significant surgical conditions in cats and dogs that can severely impair urinary system function and may lead to life-threatening clinical manifestations if not diagnosed in a timely manner. The clinical signs, which vary depending on the cause, location, and duration of the obstruction, are often nonspecific and can be easily confused with other urinary tract diseases. Early diagnosis and appropriate surgical intervention are crucial for preserving renal function and preventing systemic complications. Diagnostic imaging modalities such as ultrasonography, intravenous pyelography (IVP), computed tomography (CT), and retrograde pyelography play a key role in identifying the location and etiology of the obstruction. Surgical treatment options include ureterostomy, ureteroneocystostomy, ureteral stent placement, subcutaneous ureteral bypass (SUB) systems, and minimally invasive techniques. Each of these approaches differs in its indications, technical aspects, and potential complications. Early recognition and proper management of postoperative complications are essential for improving prognosis. This review comprehensively discusses the clinical manifestations, diagnostic approaches, and surgical treatment options for ureteral obstructions in cats and dogs in the light of current literature.