TL;DR: While unpleasant, a dog eating cat feces is rarely an emergency and typically only causes mild gastrointestinal upset, though large amounts of clumping litter or parasites can pose risks.
What is coprophagia and why does my dog eat cat poop?
Eating feces, medically known as coprophagia, is a common albeit unpleasant behavior in dogs. Because cat food is high in protein and fat, feline waste often retains a scent that dogs find appealing. While it is a natural scavenging instinct, it can be a source of frustration and concern for pet owners.
Is it a medical emergency if my dog eats cat feces?
Urgency Level: Low. In the vast majority of cases, a dog eating cat feces is not a medical emergency. Most dogs will experience no symptoms at all, or perhaps only mild gastrointestinal upset. However, you should contact a veterinarian if you notice the following symptoms:
- Persistent vomiting
- Bloody diarrhea
- Extreme lethargy
- Possible parasitic infection or a reaction to the cat litter
How can providing photos help a vet triage my dog?
If you are consulting a vet or a triage service, providing visual information can be very beneficial. Useful photos include:
- A photo of the cat's stool to help the professional look for signs of visible parasites or blood.
- A photo of the litter packaging to determine if it is a clumping clay or silica-based type, which can cause digestive issues if a large volume is ingested by a small dog.
Clinical Context (Merck Veterinary Manual)
Dogs that ingest cat feces risk infection with parasites such as hookworms and Giardia, and potentially pathogenic bacteria, including Salmonella and Campylobacter. Pathogenic *Escherichia coli* are emerging as a potentially important problem in dogs. Fecal examination should be performed to detect these parasites and bacteria. Giardia can be detected using serial zinc sulfate fecal flotations or a commercially available ELISA, with the latter demonstrating better sensitivity.
Chapter: Gastroenterology, Infectious Disease, Parasitology
Source: The Merck Veterinary Manual, 11th Edition (Page 403)