Cat Throwing Up: Causes & When to Call the Vet
Vomiting is common in cats, but it is not 'normal' if it happens often. Occasional hairballs are expected. Frequent vomiting, weight loss, or vomiting with lethargy suggests an underlying problem.
Common causes
- Hairballs, especially in long-haired cats
- Eating too quickly
- Food intolerance or sudden diet change
- Swallowed string, ribbon or hair ties (dangerous)
- Kidney disease, hyperthyroidism, diabetes (common in older cats)
- Inflammatory bowel disease
- Toxic plants such as lilies
See a vet promptly if
- Your cat vomits more than once a week or several times in a day
- There is blood or the cat stops eating for more than 24 hours
- You see string or thread hanging from the mouth (do not pull it)
- Your cat is losing weight, drinking more or hiding
- Possible lily exposure — this is an emergency
Helping at home
- Slow-feeder bowls or smaller, more frequent meals
- Regular brushing to reduce hairballs
- Change foods gradually
This guide is general information, not a diagnosis. If you're worried about your pet, call your vet or an emergency clinic.