FLUTD BIBLE

The Cat Cystitis & Urinary Tract Bible

From cystitis symptoms to urinary emergencies, stones and recurrence.

12 chapters · 12 documents · iCatCare 2025

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A living book. This isn't finished and won't be — iCatCare 2025 criteria change, and so does this. Treatments under review today may read differently in a year. Last updated 12 Sep 2026

Part 1 · First things first

01 Symptoms and the first visit Blood in urine, frequent attempts and the veterinary handover 1

Repeated trips to the litter box — what cystitis does and does not mean

02 Urinary obstruction Emergency care and discharge questions 1

A night with no urine — the signs that cannot wait

03 Reading test results Urinalysis, culture and imaging 1

The red flags on a urine report — what to check before the numbers

Part 2 · Understanding the cause

04 Idiopathic cystitis FIC, pain, environment and recurrence 1

Cystitis that returns — what comes after “reduce stress”

05 Bacterial urinary infection Confirming infection and discussing antibiotics 1

Cystitis is not an antibiotic prescription — the missing diagnostic step

06 Urinary stones Crystals, struvite and calcium oxalate 1

Crystals are not always stones — making sense of urinary stone results

Part 3 · Ongoing care at home

07 Choosing a therapeutic diet Goals, treats and other health conditions 1

Before the word urinary — define what this diet is meant to do

08 Water and litter box records Observed output, hydration and uncertainty 1

The water bowl is empty — but who drank it?

09 Environment and multi-cat homes Resources, access and signs of conflict 1

Not fighting is not the same as feeling safe — the route to the litter box

10 Medicines and supplements Pain care, purpose and strength of evidence 1

What does good for the bladder mean? Reading medicine and supplement evidence

11 Discharge and recurrence Rechecks, obstruction warnings and home observations 1

Discharge is a handover — watching the days after urinary treatment

12 Long-term and shared care Kidney disease, diabetes and older cats 1

When the bladder is not the only concern — coordinating long-term care

Diagnosis and treatment belong with your own vet.