Cats vomit more than other pets. It's just a fact of feline life. Hairballs, eating too fast, sensitive stomachs—these are all common reasons. But when vomiting becomes frequent or severe, it crosses the line from "annoying cat thing" to medical concern.
Common Causes of Cat Vomiting
- Hairballs — The classic. Long-haired cats especially. You'll see tubular masses of hair.
- Eating too fast — Food comes back up undigested, shortly after eating.
- Dietary indiscretion — Eating plants, string, or non-food items.
- Food allergies or sensitivities — Reaction to ingredients in food.
- Inflammatory bowel disease (IBD) — Chronic GI inflammation. Common in cats.
- Parasites — Roundworms, tapeworms.
- Kidney disease — Very common in senior cats. Causes nausea and vomiting.
- Hyperthyroidism — Overactive thyroid gland, common in older cats.
- Pancreatitis — Inflammation of the pancreas.
- Intestinal blockage — Foreign objects like string, toys, or hairballs blocking the intestines.
🚨 Get to a Vet Immediately If:
- Blood in vomit — Red blood or coffee-ground appearance
- Repeated vomiting — 3+ times in a few hours
- Can't keep water down — Dehydration risk
- Projectile vomiting — Could indicate blockage
- Lethargy or hiding
- Not eating for 24+ hours — Risk of fatty liver disease
- Diarrhea along with vomiting
- Abdominal pain — Hunched posture, crying when touched
- Known toxin ingestion — Lilies, antifreeze, human medications
- Yellow skin/gums — Sign of liver problems
Hairballs vs. Vomiting: Know the Difference
Hairballs: Cat coughs, gags, then produces a tubular mass of hair and foam. Happens occasionally (1-2x/month). Cat is otherwise normal.
Vomiting: Forceful expulsion of stomach contents (food, liquid, bile). If it's frequent, contains blood, or your cat seems sick, it's not "just hairballs."
What You Can Do at Home
For Mild, Occasional Vomiting:
- Withhold food for 12 hours — Let the stomach settle. Keep water available.
- Offer bland diet — Boiled chicken, plain pumpkin. Small portions.
- Slow down eating — Use puzzle feeders or spread food on a plate.
- Regular brushing — Reduces hairballs by removing loose fur.
- Hairball remedies — Petroleum-based gels or high-fiber treats.
- Keep toxic plants away — Lilies, poinsettias, aloe.
If vomiting continues beyond 24 hours or worsens, see your vet.