
My Cat Keeps Being Sick
If you're worried about your cat's vomiting then the PDSA has some excellent advice. Read on...

Causes of vomiting
There are many different causes of vomiting in cats, some are mild and some much more serious. Common causes include:
- Gastritis (a mild stomach upset)
- Worms
- Fur balls
- Travel sickness
- Change of diet/eating something unusual
Less common causes of vomiting in cats include:
- Pancreatitis (inflammation of the pancreas)
- Triaditis
- Food allergies
- Hyperthyroidism (overactive thyroid gland, most common in senior cats)
- Kidney disease
- Poisons and toxins
- A gut blockage
- Medication side effect
- Inflammatory bowel disease
- Diabetes
- Liver disease
How to know if a cat is feeling nauseous (sick)
If your cat is feeling sick, they are likely to show some of the following symptoms:
- Licking their lips and swallowing more than usual
- Drooling
- Eating grass
- Reduced appetite

When to contact your vet
It may not be necessary to see your vet each time your cat vomits (most cats vomit from time to time), but it is important to monitor them and call your vet for advice if they vomit more than once, seem unwell, or have any other symptoms. Contact your vet straight away if your cat has been vomiting for more than 24 hours, is unable to keep food or water down, is very young or old, is otherwise unwell, or has any of the following symptoms:
- Has low energy (is lethargic)
- Has eaten something they shouldn’t have
- Has pale gums
- Has diarrhoea
- Has a painful abdomen
- Has blood or black dots in their vomit
- Is drinking or peeing more than usual
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