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DOGS AND CATS · OWNER EDUCATION

Urinary Tract Infections in Dogs and Cats

A bacterial urinary infection can cause painful, frequent urination, but stones, inflammation and obstruction can cause nearly identical signs.

Illustration of a veterinarian caring for companion animals
OWNER VISUAL GUIDEEach animal's diagnosis and care plan should be individualized by a veterinary professional. This educational illustration is not a diagnostic image.

THE SHORT VERSION

Understanding supports better veterinary conversations.

A bacterial urinary infection can cause painful, frequent urination, but stones, inflammation and obstruction can cause nearly identical signs. The same outward signs can occur with several diseases, so an examination and appropriately selected testing are important.

01 · OVERVIEW

What is this condition?

A bacterial urinary infection can cause painful, frequent urination, but stones, inflammation and obstruction can cause nearly identical signs. The same outward signs can occur with several diseases, so an examination and appropriately selected testing are important.

02 · SPECIES AFFECTED

Which animals can be affected?

DogsCats

Risk factors, examination findings and management can differ between species and individual patients.

03 · CAUSES AND RISK FACTORS

Why can it happen?

  • Bacteria entering and multiplying in the urinary tract.
  • Diabetes, kidney disease, bladder stones or anatomy may increase recurrence risk.
04 · OWNER OBSERVATIONS

What might an owner notice?

  • Frequent small urinations, straining or accidents indoors.
  • Blood in urine, genital licking, odor or discomfort.
Use the printable symptom diary →
05 · HOW VETERINARIANS EVALUATE IT

How is the problem investigated?

  • Urinalysis plus urine culture from an appropriately collected sample.
  • Imaging or bloodwork when stones, recurrence or another disease is suspected.
Explore the diagnostic testing library →
06 · TREATMENT OR MANAGEMENT

What might treatment involve?

  • Antibiotic selection based on the individual situation and culture when indicated.
  • Treatment of stones, diabetes or other contributing disease.

This is an overview, not a prescription or a recommendation for a specific individual animal.

07 · HOME CARE

What can owners do at home?

  • Write down when the problem began and track appetite, drinking, waste, activity, breathing and medication use.
  • Bring clear photos or short videos when they can be taken without stressing the animal.
  • Follow the veterinary team's instructions for medication, feeding, isolation, environmental changes and rechecks.
08 · WHAT NOT TO DO

Avoid actions that could make care less safe.

  • Do not use human medication, leftover antibiotics or another animal's treatment without veterinary direction.
  • Do not force food or water into an animal that cannot swallow normally, is struggling to breathe or may have an obstruction.
  • Do not delay veterinary care when pain, breathing, appetite, urination, movement or responsiveness changes quickly.
09 · PROGNOSIS AND PREVENTION

What can the longer-term outlook involve?

The outlook depends on the underlying cause, severity, species and how quickly effective care begins.

Can risk be reduced?

  • Provide species-appropriate nutrition, housing, sanitation and routine veterinary care.
  • Learn the animal's normal behavior, appetite, body condition and waste pattern so meaningful changes are noticed early.
10 · WHEN TO CONTACT YOUR VETERINARIAN

When should you arrange care?

  • Contact a veterinarian promptly for frequent small urinations, straining or accidents indoors. or blood in urine, genital licking, odor or discomfort..
  • Arrange reassessment if signs return, worsen or do not improve as expected.
11 · EMERGENCY WARNING SIGNS

Seek emergency veterinary care if you notice:

SEEK EMERGENCY VETERINARY CARE
  • Straining with little or no urine, vomiting, collapse, severe pain or a swollen abdomen.
Open the emergency action guide →

Sources behind this guide

VeterinaryPartner — client education from the Veterinary Information NetworkPrimary veterinary or veterinary-university guidance ↗American Animal Hospital Association: pet health resourcesPrimary veterinary or veterinary-university guidance ↗

Content last reviewed: September 17, 2026. Review status: veterinary-informed; independent veterinarian review not yet completed.