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My cat is vomiting — what now?

A single vomit is usually not serious. Repeated vomiting, blood, or a cat that will not eat afterwards needs handling today. Work out which one you are looking at.

First, how urgent is this?

Go now

  • Blood in the vomit.
  • Vomit that looks like coffee grounds.
  • Repeated retching that brings nothing up, with a swollen belly.
  • Fast breathing or open-mouth breathing.
  • No urine at all, or straining in the litter box.

Contact your vet today

  • More than two episodes of vomiting in 24 hours.
  • No food at all for 24 hours after the vomiting started.
  • Yellow fluid or white foam, coming back repeatedly.
  • A kitten, a senior cat, or a cat with a known chronic condition.

Record and observe

  • One vomit of undigested food, bile or clear fluid, then normal energy and drinking.
  • Hairballs, once every week or two.
  • Already under vet care: record when and how often it happens, and what came up.

Before you set off

  • When and how often, and a photo of what came up.
  • Whether there was food, hair, a foreign object or blood in it.
  • Anything eaten or chewed before and after: plants, medicines, the bin.
  • When the cat last ate, drank and urinated.
  • A list of medicines and the time of the last dose.
  • Do not give human medicine or anti-sickness drugs; do not stop a prescribed medicine on your own.

What your vet may ask and do

  • Ask: when it started, and whether it was once or repeated.
  • Ask: any blood, coffee-ground material or foreign object.
  • Ask: any recent food change, scavenging, or contact with other animals.
  • Do: weight, hydration check, abdominal palpation.
  • Do: blood tests (kidney values, electrolytes, pancreatic markers).
  • Do: X-rays or ultrasound for a foreign object or abnormal gut movement.
  • Do: fluids for a dehydrated or still-vomiting cat, and admission for severe cases.

Where to go in Hong Kong

Call the clinic before you drive over, to confirm tonight's arrangements and the location.