TL;DR: Watery diarrhea in cats can lead to rapid dehydration and requires veterinary attention if it persists for more than 24 hours or is accompanied by symptoms like vomiting and lethargy.
What causes watery diarrhea in cats and why is it concerning?
Watery diarrhea in cats occurs when the small intestine is unable to absorb nutrients and water correctly, leading to a high volume of liquid stool. This condition can be caused by various factors, including sudden dietary changes, food sensitivities, parasites, or bacterial and viral infections. Because cats are small, the loss of fluid through liquid stool can lead to dehydration much faster than in humans.
When is my cat's watery diarrhea considered a medical emergency?
- The urgency level for watery diarrhea is generally considered Medium, but persistent episodes lasting more than 24 hours are a significant concern.
- Contact an emergency vet immediately if the diarrhea is accompanied by vomiting, extreme lethargy, pale gums, or if your cat refuses to drink water.
- Kittens and senior cats are at a higher risk for complications and should be evaluated by a professional sooner than healthy adult cats.
How does providing a photo of my cat's stool help the veterinarian?
- Providing your veterinarian with a photo of the stool can be incredibly helpful for triage and diagnosis.
- A clear image allows the vet to assess the color, consistency, and presence of blood or mucus.
- Visual evidence helps differentiate between issues in the small and large intestines.
- This information, combined with your cat's medical history, often leads to a faster and more accurate treatment plan.
Clinical Context (Merck Veterinary Manual)
In cats presenting with watery diarrhea, pet owners should be aware that affected animals may exhibit anorexia and dehydration. Affected cats may sit for extended periods at their water bowl, although they may not drink much. Physical examination may reveal profound depression, dehydration, and sometimes abdominal pain. Palpation may induce vomiting and reveal thickened intestinal loops and enlarged mesenteric lymph nodes. Treatment should involve a highly digestible protein hydrolysate diet, with restricted fat content to minimize secretory diarrhea. In cases of inflammatory bowel disease, oral prednisolone may be indicated, potentially with adjunctive chlorambucil. Metronidazole is often administered.
Chapter: Gastroenterology
Source: The Merck Veterinary Manual, 11th Edition (Page 398)