Vomiting vs. regurgitation
Vomiting is active: your cat heaves, the belly contracts, and partly digested food or fluid comes up. Regurgitation is passive: undigested food or fluid slides up from the esophagus with little effort, often right after eating. Tell your vet which you saw; the causes are different.
Common causes of cat vomiting
- Hairballs
- Eating too fast ("scarf and barf")
- Food sensitivity or a diet change
- Eating plants (some, like lilies, are deadly)
- Swallowed string, hair ties or plastic
- Inflammatory bowel disease or intestinal lymphoma
- Kidney disease, hyperthyroidism or diabetes (especially in older cats)
Vomiting is not "normal" for cats. Many owners assume regular vomiting is just hairballs, but vets recommend a check-up for any cat that vomits more than about once a week, as it can be an early sign of chronic disease.
What to do after your cat vomits
- Remove food for a few hours and offer small amounts of water.
- If no more vomiting, offer a small bland meal.
- Return to normal food gradually over 1-2 days.
- Call your vet if vomiting returns, or any red-flag signs appear.
Also see: what can I give my pet? · my cat ate something