Urinary tract infections cause pain and discomfort in dogs but are often missed. Evidence-based diagnosis, appropriate antibiotic use, and prevention strategies improve welfare outcomes.
Genuine bacterial urinary tract infections cause significant discomfort in dogs — the burning pain of urination, urgency, and lower abdominal discomfort are real welfare harms. However, appropriate diagnosis is important. Urine samples collected by free catch or from the floor are frequently contaminated, leading to over-diagnosis and over-treatment. Cystocentesis (sterile bladder tap) samples give the most accurate culture results.
Antibiotic stewardship is a welfare issue both for individual dogs (avoiding drug side effects and resistant infections) and for the broader human-animal health interface. Routine empirical antibiotic prescribing without culture contributes to antimicrobial resistance. Many apparent UTIs resolve without treatment or have causes that antibiotics cannot address.
Recurrent UTIs in dogs require investigation for underlying conditions. Bladder stones physically predispose to infection and cannot be resolved by antibiotics alone. Ectopic ureters, anatomical abnormalities, immunosuppressive conditions, and hyperadrenocorticism all increase UTI risk. Addressing the underlying cause is the welfare-optimal approach to recurrent infection.