Urinary tract infections in cats

By
✔ MRCVS
BSc
BVM&S
FHEA
Updated October 16, 2025
6 min read

Overview

Symptoms

Risk

Diagnosis

Vet treatment

Home treatment

Prevention

When to worry

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Urinary tract infections in cats

By
✔ MRCVS
BSc
BVM&S
FHEA
Updated October 16, 2025
6 min read

Urinary tract infections in cats happen when bacteria invade the urinary system. The urinary tract includes the kidneys, ureters, bladder and urethra. Cystitis, a bladder infection, is the most common UTI. Bacterial infections are uncommon in young cats but more likely in females and older cats with other illnesses. Symptoms range from mild to life-threatening.

Urinary tract infections, or UTIs, happen when bacteria, usually from the skin or bum, get into the urinary system and overcome the body’s defences. Infections in the bladder and urethra are lower urinary tract infections. Upper urinary tract infections involve the kidney(s) and ureter(s). Only 1-2% of all cats get a bacterial UTI in their lifetime. But it can cause life-threatening complications of common illnesses in older cats. Always talk to a vet if you think your cat has a UTI.

What are urinary tract infections in cats? >What are urinary tract infections in cats? [Overview

What are the symptoms of a UTI in cats? >What are the symptoms of a UTI in cats? [Symptoms

Which cats are most at risk of urinary tract infections? >Which cats are most at risk of urinary tract infections? [Risk

How do vets diagnose urinary tract infections in cats? >How do vets diagnose urinary tract infections in cats? [Diagnosis

Vet treatment of urinary tract infections in cats >Vet treatment of urinary tract infections in cats [Vet treatment

How to care for a cat with a urinary tract infection at home >How to care for a cat with a urinary tract infection at home [Home treatment

How to prevent your cat from getting a urinary tract infection >How to prevent your cat from getting a urinary tract infection [Prevention

When to worry >When to worry [When to worry

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