TL;DR: While cats vomiting undigested food can be caused by eating too quickly, persistent episodes or additional symptoms like lethargy require veterinary attention. Monitoring your cat and providing photos of the vomit can help your vet determine if there is an underlying blockage or sensitivity.
What does it mean when my cat vomits undigested food?
When a cat brings up food that looks exactly as it did in the bowl, it is often a sign of regurgitation or rapid vomiting. This occurs when the stomach or esophagus rejects the food almost immediately after ingestion. While it can sometimes be a simple case of eating too quickly—often called 'scarf and barf'—repeated episodes may indicate inflammation, food sensitivities, or a physical blockage in the digestive tract.
How urgent is it if my cat is vomiting undigested food?
- Monitor your cat at home if they are acting normal, have good energy, and show no signs of pain.
- Schedule a veterinary appointment promptly if the vomiting persists for more than 24 hours.
- Seek medical attention immediately if the vomiting is accompanied by lethargy, diarrhea, or a refusal to drink water to prevent dehydration.
Why should I take a photo of my cat's vomit for the vet?
- Take a clear photo of the vomitus before cleaning it up to document the color, texture, and amount.
- Provide visual evidence to help the veterinary team differentiate between simple regurgitation and true vomiting.
- Check the photo for hidden clues like bits of string, plastic, or hairballs that might be causing digestive irritation.
Clinical Context (Merck Veterinary Manual)
Vomiting of undigested food in cats may result from dietary indiscretion or intolerance, such as ingestion of novel, spoiled, or contaminated foods, or foreign material. Other causes include drug or toxin ingestion (e.g., antibiotics, NSAIDs, corticosteroids, plants, chemicals), systemic illness (e.g., pancreatitis, uremic gastropathy), endoparasitism (e.g., *Ollulanus* sp), or bacterial (e.g., *Helicobacter*-associated disease) or viral (e.g., feline panleukopenia) infection. Careful monitoring for persistent vomiting, depression, abdominal discomfort, and/or fever is critical, and reevaluation is warranted if vomiting persists. Diagnostic efforts should include abdominal palpation to check for foreign bodies or abdominal discomfort, and careful examination of the oral cavity for yarn, thread, or needles. Abdominal radiographs should be performed to look for radiopaque foreign objects or signs of intestinal distention, indicating possible obstruction. Chronic vomiting may indicate underlying thyroid, liver, or kidney dysfunction and should be investigated.
Chapter: Gastroenterology
Source: The Merck Veterinary Manual, 11th Edition (Page 390)