TL;DR: A potbellied appearance and diarrhea in cats can indicate parasites, fluid buildup, or organ issues and requires a veterinary visit within 24-48 hours. Seek immediate care if your cat is also lethargic, vomiting, or refusing to eat.
What causes a cat to have a potbellied appearance and diarrhea?
A potbellied appearance combined with diarrhea in cats often indicates an underlying medical issue, ranging from nutritional deficiencies to serious infections. In kittens, this is frequently seen with intestinal parasites, where the belly distends due to a high worm burden while the stool remains loose. In adult cats, it can signal fluid accumulation known as ascites, inflammation, or significant organ dysfunction.
How urgent is it if my cat has a potbellied stomach and diarrhea?
- This condition is generally considered a medium urgency, requiring a veterinary appointment within 24 to 48 hours.
- Seek care sooner if your cat is lethargic, refusing to eat, or vomiting.
- Be aware that prolonged diarrhea can lead to dangerous dehydration, especially in smaller cats and kittens, which can quickly become critical.
How can photos of my cat's belly and diarrhea help the veterinarian?
- Provide your veterinarian with photos of your cat's distended abdomen from both the side and top views for remote triage.
- Take a clear photo of the diarrhea to help identify the presence of blood, mucus, or visible parasites.
- Use these visual cues to allow the veterinary team to better assess severity and prioritize your cat's care before you arrive at the clinic.
Clinical Context (Merck Veterinary Manual)
In cats presenting with a potbellied appearance and diarrhea, potential causes include fat malabsorption (most notably in lymphangiectasia), feline infectious peritonitis, and toxoplasmosis. Chronic diarrhea and weight loss are common signs, and systemic diseases should be considered in the differential diagnosis. Diagnostics should include ruling out hyperthyroidism via serum T4 measurement, and testing for feline leukemia virus and feline immunodeficiency virus, as these can be associated with secondary chronic diarrhea. Examination of feces for parasites is also warranted. Animals may be systemically well unless there is severe inflammation or neoplasia; nonspecific signs may include dehydration, anemia, and ascites or edema in cases of hypoproteinemia. Thickened bowel loops or enlarged mesenteric lymph nodes may be palpable, especially in cats.
Chapter: Gastroenterology, Infectious Disease, Nephrology
Source: The Merck Veterinary Manual, 11th Edition (Page 403)