FIP FAQ

Feline infectious peritonitis (FIP) is a serious disease associated with a feline coronavirus variant and an abnormal immune response. Signs may involve the abdomen, chest, eyes, nervous system, and multiple organs. Only a veterinarian can diagnose FIP.

FIP is commonly described as Wet (effusive) and Dry (non-effusive). Some cats also show ocular involvement (eye changes) and/or neurologic involvement (gait changes, seizures). Mixed presentations can occur.

Common signs can include recurrent fever, weight loss, reduced appetite, lethargy, abdominal enlargement (fluid), breathing difficulty (fluid), anemia/jaundice, eye inflammation, and abnormal walking or coordination.

Yes. Early signs may be nonspecific and may fluctuate. Tracking trends (temperature, weight, appetite, activity) can help identify persistent patterns.

No single blood test confirms FIP in all cases. Bloodwork can support suspicion (e.g., protein imbalance, inflammation) but must be interpreted with clinical signs, imaging, and other diagnostics.

A low albumin-to-globulin (A/G) ratio can be associated with inflammatory disease and may increase clinical suspicion for FIP, but it is not specific and does not diagnose FIP by itself.

Ultrasound can detect effusion and organ changes, evaluate lymph nodes, and guide fluid sampling. It provides supportive information but does not confirm FIP on its own.

Effusion may be high in protein and show inflammatory cells on cytology. Some clinics use the Rivalta test as a screening tool. Results must be interpreted with clinical context and differential exclusions.

Consider tracking body temperature, weight, appetite, water intake, activity level, and symptom changes. Trend data can help your veterinarian.

Many findings in FIP evaluation are not specific. Repeated measurements over time can reveal consistent patterns and help distinguish temporary issues from progressive disease.

Treatment decisions should be made with a licensed veterinarian. Educational resources can help you understand terminology, monitoring goals, and common clinical considerations—but should not replace professional care.

No. FIP can be confused with other serious diseases. Starting or changing treatment without veterinary supervision may delay correct diagnosis and appropriate care.

Seek urgent care if your cat has breathing difficulty, collapse, seizures, sudden inability to walk, severe lethargy/unresponsiveness, or rapid abdominal enlargement.

No. This website provides educational information only. Always consult a licensed veterinarian for diagnosis and treatment decisions.