CatFIP
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CatFIP

Overview

What FIP is and why it can look different across cats

FIP is a serious systemic disease in cats associated with a mutated feline coronavirus and an abnormal immune response.        Because multiple organs may be affected, clinical signs can vary widely. Early recognition and appropriate veterinary evaluation        are important for selecting diagnostic tests and supportive care.

Key idea
FIP often presents as fluid accumulation (wet) or granulomatous lesions (dry).
Common pattern
Persistent/recurrent fever, weight loss, lethargy, and elevated inflammatory markers.
Best next step
Use a structured checklist + veterinary interpretation of labs and imaging.

Cat FIP Types

Four clinical presentations at a glance
Wet FIP
Abdominal/Chest Fluid · Rapid Onset · Common
💧
Dry FIP
Granulomas · Slow Progression · Often Subtle
🧬
Ocular FIP
Uveitis · Abnormal Pupils · Vision Changes
👁️
Neurologic FIP
Ataxia · Seizures · Abnormal Gait
🧠
Based on guidance and educational materials from Cornell University Veterinary Medicine · Merck Veterinary Manual · VCA Animal Hospitals · ISFM · AAFP

Symptoms

Six common warning signs (overview)
🌡️ Recurring Fever      📉 Sudden Weight Loss      🟡 Anemia / Jaundice      🫧 Abdominal Enlargement      🍽️ Poor Appetite      🚶 Abnormal Gait
Tip: Symptoms overlap with other conditions. Use the diagnosis flow and consult a licensed veterinarian for evaluation.

Diagnosis

A practical checklist-based flow
  1. 1) Baseline Records      
    Weight, temperature trend, appetite, hydration, activity, timeline of symptoms.
  2. 2) Blood Testing      
    CBC + chemistry, albumin/globulin ratio, inflammatory markers, organ function trends.
  3. 3) Imaging      
    Ultrasound/radiographs for effusion, organ changes, lymph node enlargement.
  4. 4) Effusion Analysis (if present)      
    Protein-rich fluid characteristics + supportive testing when clinically appropriate.
  5. 5) Differentials & Exclusion      
    Consider cardiac, hepatic, neoplastic, bacterial causes; interpret patterns with a vet.
  6. 6) Integrated Assessment      
    Combine clinical signs + test results + progression to guide next steps.
Checklist      Report Guide      Quick Check

Treatment

Treatment options, monitoring, and supportive care (educational)
Monitoring
Track weight, appetite, energy, temperature trends, and lab follow-ups as recommended.
Supportive Care
Hydration, nutrition, symptom relief, and management of complications under veterinary guidance.
Medication Guidance
Educational information on antiviral approaches and dosing concepts—always consult a veterinarian.
Safety
Discuss risks, interactions, and monitoring plans with a licensed veterinarian.
FIP Treatment Guide      FIP Medication Guide

FAQ

Short answers for common questions
Is FIP always wet or dry?
Not always. Some cats show mixed patterns or develop ocular/neurologic involvement alongside wet or dry disease.
Can FIP be diagnosed with a single test?
FIP diagnosis is typically based on a combination of clinical signs, lab trends, imaging, and (when appropriate) sample testing and exclusion of other causes.
Where should I start if I suspect FIP?
Start with baseline records and veterinary evaluation. Follow a structured checklist (blood tests + imaging) and proceed based on findings.
View all FAQs

References & Medical Review

Authoritative veterinary sources (educational)
  • Cornell University College of Veterinary Medicine (Feline Health Center)
  • Merck Veterinary Manual
  • VCA Animal Hospitals
  • ISFM (International Society of Feline Medicine)
  • AAFP (American Association of Feline Practitioners)
Medical Disclaimer
Important: All content is provided for educational purposes only and does not constitute veterinary diagnosis, treatment, or medical advice.        Always consult a licensed veterinarian for any health-related decisions concerning your pet.
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