Updated September 30, 2026. Fact-checked against veterinary sources; review by a licensed veterinarian is in progress. See our editorial policy.
Urinary symptoms in cats are common, but a bacterial urinary tract infection is only one possible cause. Bladder inflammation, crystals, stones, stress-related feline idiopathic cystitis, and urinary blockage can cause very similar signs.
Common signs
- Frequent trips to the litter box
- Straining to urinate
- Passing only small amounts of urine
- Blood in the urine
- Urinating outside the litter box
- Licking around the urinary opening
- Crying or showing discomfort while urinating
Why testing matters
A urinalysis can help identify blood, inflammation, crystals, and other abnormalities. When bacterial infection is suspected, a urine culture can determine whether bacteria are present and which antibiotic is most likely to work.
How bacterial UTIs are treated
When a true bacterial infection is confirmed, treatment usually involves an appropriate antibiotic. The drug and duration depend on the cat’s history, culture results, and whether the infection is simple or recurrent.
Many cats with urinary signs do not have a bacterial infection
In younger and otherwise healthy cats, feline idiopathic cystitis is a common cause of urinary signs. Stress, environment, hydration, and bladder inflammation may play a major role.
Hydration can help
Increasing water intake may help dilute urine. Wet food, multiple water bowls, and water fountains can encourage some cats to drink more.
Urinary blockage is an emergency
Male cats are at particular risk of urethral obstruction. A cat that repeatedly strains but produces little or no urine needs immediate veterinary care.
When infections keep coming back
Recurrent bacterial UTIs may prompt evaluation for kidney disease, diabetes, bladder stones, anatomical problems, or other underlying conditions.
The bottom line
Do not assume every cat with urinary symptoms has a bacterial UTI. Testing is important because the treatment for infection is different from the treatment for bladder inflammation, crystals, stones, or obstruction.
Sources
- ISCAID urinary tract infection guidelines
- Merck Veterinary Manual: Lower urinary tract disease in cats
This article is for general education and is not a substitute for care from your own veterinarian. Learn about The Pet Vet and our editorial policy.