Cat Vomit Color Chart
Cat vomit color is a rough but genuinely useful clue about what's going on. Here's what each color commonly indicates — and which ones mean calling the vet rather than reaching for the paper towels.
Cat vomit color chart
Usually stomach fluid or recently drunk water coming back up — often from drinking too fast or mild nausea. A one-off in a bright, eating cat is usually fine. Repeated clear vomiting can mean an obstruction, so watch closely.
Typically an empty, irritated stomach — common in cats fed one large meal a day. Splitting meals often fixes it. If it continues for more than a day or comes with lethargy, see the vet.
Bile on an empty stomach, most often early morning. Green suggests bile from further down. An occasional episode is common; daily bile vomiting is worth investigating.
Usually undigested or partly digested food — eating too fast, a diet that doesn't agree, or a hairball with food. If it smells strongly faecal, that suggests an obstruction: vet, same day.
A cylinder of matted fur, sometimes with food. One every week or two in a long-haired cat is common. Frequent hairballs, or retching without producing one, warrants a vet visit — retching with nothing can signal a blockage.
Bleeding in the mouth, oesophagus or stomach — ulcers, a swallowed foreign object, or toxin ingestion. Call your vet immediately.
Digested blood from the stomach. Serious and urgent regardless of how well your cat otherwise seems. Go now.
String, tinsel, plant matter, plastic. String and tinsel are especially dangerous in cats — never pull on a string you can see, and go straight to the vet.
What matters as much as the color
| Question | Reassuring | Concerning |
|---|---|---|
| How often? | Isolated episode | Repeated within hours, or several times a week |
| Still eating? | Normal appetite after | Refusing food — especially over 24 hours |
| Behaviour? | Bright, normal | Hiding, lethargic, hunched, crying |
| Drinking? | Normal | Much more, much less, or unable to keep water down |
| Litter box? | Normal | Diarrhea, straining, or nothing at all |
The most important cat-specific rule
A cat that stops eating is an urgent problem in a way that doesn't apply to dogs. Cats who go without food for more than about 24–48 hours can develop hepatic lipidosis (fatty liver disease), which is life-threatening and can be triggered by even a short fast — especially in overweight cats. If vomiting is stopping your cat from eating, that alone is reason to call.
Reducing everyday vomiting
- Slow the eating down: a puzzle feeder or a flat tray with kibble spread out stops the gulp-and-return cycle.
- Split the meals: two or three smaller meals beat one large one for bile vomiting.
- Brush regularly: the most effective hairball treatment is removing the hair before it's swallowed.
- Check portions: overfeeding contributes more than people expect — see the cat food calculator.
The other quick at-home check worth learning is gum color, which tells you about circulation and oxygen: see the cat gum color chart.
Frequently asked questions
Is it normal for cats to vomit?+
Occasional vomiting — an occasional hairball, or eating too fast — is common but not truly "normal." Vets increasingly treat frequent vomiting (more than about once a month) as a sign worth investigating rather than a quirk of being a cat.
What does yellow cat vomit mean?+
Yellow or foamy vomit is usually bile on an empty stomach — often seen early in the morning in cats fed once a day. Splitting meals or offering a small late snack often resolves it. Persistent yellow vomiting with lethargy needs a vet.
What does it mean if my cat vomits blood?+
Fresh red blood or dark coffee-ground material means bleeding in the stomach or upper gut — from ulcers, foreign objects, or ingested toxins. This is an emergency; call your vet immediately, and if poisoning is possible, ASPCA Poison Control on (888) 426-4435.
How often are hairballs normal?+
A hairball every week or two in a long-haired cat is common, though not ideal. More than that suggests over-grooming, a digestive motility issue, or a skin problem driving the grooming. Regular brushing reduces them more than any supplement.
When is cat vomiting an emergency?+
Go immediately for: repeated vomiting over a few hours, blood or coffee-ground material, vomiting with lethargy or hiding, a suspected string or toy ingestion, or any cat that has not eaten in 24 hours. Cats deteriorate faster than dogs when they stop eating.