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My cat has green diarrhea, vomiting, and is lethargic. What to do?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 1 year old | 10 lbs

Cat (1 year old) has been having discoloured diarrhea beginning this morning. Was intially green but has since became clear. She has vomited once and is now acting lethargic. She is still being social but it is clear that she is still not feeling well. What could cause this?

1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on May 26th, 2019

It sounds as Midnight is suffering from a gastrointestinal condition, possibly an infection. it could also be due to ingestion of a foreign body material. i would recommend taking her to the vet the first chance you get, she will need to be checked first, if the vet thinks it's a simple gastrointestinal infection she will need an anti vomiting injection, antibiotics and a special food for a few days in order to get better. if the vet thinks it is more serious she will need a blood test and possibly an ultrasound in order to find out what is wrong.

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