Cat Vomiting

Overview

Cats vomit for many reasons, from hairballs to more serious illness. A single episode in an otherwise normal cat may not require emergency care, but repeated vomiting — especially with lethargy or loss of appetite — may warrant prompt attention. Because cats can develop complications when they stop eating, vomiting that persists may need veterinary guidance sooner than you expect.

When emergency veterinary care may be appropriate

• Repeated vomiting over several hours
• Blood in vomit or vomit that looks like coffee grounds
• Vomiting with lethargy, weakness, or hiding
• Unable to keep water down
• Suspected toxin, lily, or foreign object ingestion
• Vomiting in a kitten, senior cat, or cat with chronic illness
• Not eating alongside vomiting for 24 hours or more

What to tell your veterinarian

• How many times your cat has vomited and over what period
• Description of vomit (food, bile, hair, blood, foam)
• Appetite and water intake
• Any diarrhea, lethargy, or behavior changes
• Recent diet changes or possible toxin exposure
• Your cat's age, weight, and medical history

What not to do

• Do not withhold water indefinitely without veterinary guidance
• Do not give human anti-nausea medications unless directed by a veterinarian
• Do not assume hairballs explain all vomiting if your cat seems unwell
• Do not delay if your cat cannot keep fluids down or stops eating